Answer: Option D
List of firsts in India
Governance
1) First President of the Indian National Congress: Womesh Chandra Bannerjee, 1885.
2) First President of the Indian National Congress of independent India: Acharya Kripalani.
3) First President: Dr. Rajendra Prasad.
4) The first Chief Election Commissioner: Sukumar Sen.
5) First Industries and Supplies Minister: Shyama Prasad Mukherjee.
6) First person to resign from the Central Cabinet: Shyama Prasad Mukherjee.
7) Vice-President: Sarvepalli Radhakrishnan.
8) First Prime Minister of Indian Republic: Pandit Jawaharlal Nehru (1947–64).
9) Deputy Prime Minister: Vallabhbhai Patel (1947–50).
10) Law Minister of India: B. R. Ambedkar.
11) Leader of Opposition: A. K. Gopalan.
12) Prime Minister to be voted out of office: Indira Gandhi.
13) Non-Congress govt: Janata Party, with Morarji Desai as the Prime Minister (1977–1980).
14) Non-Congress State govt with Majority: E. M. S. Namboodiripad of CPI, Kerala 1957.
15) Prime Minister to lead a minority govt for a full term: P. V. Narasimha Rao, 1991 – 1996.
16) Non Congress Prime Minister to serve a full term: Atal Bihari Vajpayee.
17) The first Viceroy of India: Lord Canning, 1858.
18) Governor-General of India: Warren Hastings, 1773.
19) Governor-General of Independent India: Lord Mountbatten, 1947.
20) Indian Governor-General of Indian Union: C Rajagopalachari, 1948.
21) Chief Justice of India: H. J. Kania (1947–51).
22) First Sikh Prime Minister: Manmohan Singh (2004–14).
23) First Muslim President: Zakir Hussain (1967–69).
24) First Sikh President: Giani Zail Singh.
25) Speaker of Lok Sabha: G. V. Mavlankar (1952–56).
26) Finance Minister of Independent India: R. K. Shanmukham Chetty.
27) First Home Minister of India: Sardar Vallabh Bhai Patel.
28) First Indian President to die in Office: Zakir Hussain.
29) First Chief Minister to die in Office: C. N. Annadurai, Tamil Nadu.
30) First Indian Prime Minister to resign from office: Morarji Desai, 1979.
31) First Prime Minister born after India's independence: Narendra Modi.
Defence (in the Republic of India)
1) Defence Minister of India: Baldev Singh.
2) Commander-in-Chief of Free India: Kodandera Madappa Cariappa.
3) Indian Commander-in-Chief of Free India: General Kodandera Madappa Cariappa.
4) Chief of Air Staff: Subroto Mukerjee.
5) Chief of Army Staff: Rajendrasinhji Jadeja.
6) Commander-in-Chief, IAF: Subroto Mukerjee.
7) Chief of Naval Staff: Sir Charles Thomas Mark Pizey.
8) First Indian (pre-Independence) flying ace: Indra Lal Roy.
9) India's first military helicopter pilot: Air Commodore Sudhindra Kumar Majumdar.
10) Cosmonaut: Sqn Ldr Rakesh Sharma, 1984.
11) Field Marshal: Sam Manekshaw (S.H.F Manekshaw).
12) First female Jawan in the Army: Sapper Shanti Tigga.
13) First Param Vir Chakra winner: Major Som Nath Sharma.
Science
1) The first president of the inaugural session of the Indian Science Congress: Sir Ashutosh Mukherjee in 1914.
2) Hydroelectric plant: Sidrapong near Darjeeling.
3) Man in space: Rakesh Sharma aboard Soyuz T-11.
4) Woman in space: Kalpana Chawla aboard Space Shuttle Columbia flight
STS-87. She was a United States citizen, and represented the US during
the event.
5) Scientific Expedition to Antarctica: 1981.
6) Nuclear Reactor: Apsara, Mumbai, Maharashtra
7) First Genetically modified food product in India: Bt. Egg plant Hybrid.
8) Satellite: Aryabhata, launched on 19 April 1975
9) Satellite dedicated exclusively for educational services: EDUSAT.
10) Successfully indigenous launch vehicle: SLV-3.
11) Prospective space tourist: Santhosh George Kulangara, proposed in 2009 aboard Virgin Galactic.
12) Cloned animal: Bhass, sampura.
13) 1902 – First wireless telegraph station established between Sagar Islands and Sandheads.
14) 1907 – First central battery of telephones introduced in Kanpur.
15) 1913–1914 – First automatic exchange installed in Shimla.
16) 1933 – Radiotelephone system inaugurated between the UK and India.
17) 1953 – 12 channel carrier system introduced.
18) 1976 – First digital microwave junction introduced.
19) 1979 – First optical fibre system for local junction commissioned at Pune.
20) 1980 – First satellite earth station for domestic communications established at Secunderabad, Telangana.
21) 1984 – First Underground Metro Railways System at Calcutta.
22) 1984 – C-DOT established for indigenous development and production of digital exchanges.
23) 1990 – First technology park in India, Technopark, Trivandrum was launched.
24) 1995 – First mobile telephone service started on non-commercial basis.
25) 2014 – First country to enter Mars' orbit on their first attempt
with successful launch of Mars Orbiter Mission (Mangalyaan).
26) 2015– First 3D printed humanoid robot in India at A-SET Training & Research Institutes – Manav (robot).
Women in Governance
1) Indian National Congress President: Annie Besant.
2) Prime Minister: Indira Gandhi, 1966.
3) President: Pratibha Patil, 2007.
4) IPS Officer Kiran Bedi.
5) Cabinet Minister in India: Rajkumari Amrit Kaur.
6) Minister in India: Vijaya Lakshmi Pandit.
7) Chief Minister: Sucheta Kriplani Uttar Pradesh.
8) Governor: Sarojini Naidu (Uttar Pradesh, 1947–49).
9) Home Minister of a state: Sabitha Indra Reddy, Andhra Pradesh.
10) Speaker of the Lok Sabha: Meira Kumar.
11) Finance Minister of State Government in India: Dr Upinderjit Kaur, in Punjab Govt.
12) Director General of Police: Kanchan Chaudhary Bhattacharya.
13) Railway Minister of India: Mamata Banerjee.
States
First State to:
1) achieve 100% primary education – Kerala 2016
2) become a fully organic state – Sikkim 2016
3) complete 100% online electoral enrollment – Kerala
4) e-auction limestone blocks – Jharkhand 2016
5) build first gender park – Kerala 2016
6) become a 'complete digital state' – Kerala 2016
Places
1) First partition of Indian state: Bengal
2) First road which is a connected to a Wi-Fi zone: Rajarhat.
3) District to achieve a 100% literacy rate: Ernakulam district, Kerala.
4) City/town to achieve a 100% literacy rate: Kottayam, Kerala.
5) District to achieve a 100% literacy rate and lowest population growth rate: Pathanamthitta district, Kerala.
6) District to be polio-free: Pathanamthitta district, Kerala.
7) District to become tobacco-free: Kottayam district, Kerala, 27 September 2008.
8) District to become India's 'total electrified district': Palakkad, Kerala.
9) City to have an e-court: Ahmedabad.
10) City to ranked as the No.1 Indian city for ‘quality of life’ – Chennai, Tamil Nadu.
11) India's first Wi-Fi city: Kolkata.
Nobel Prize
1) 1913: Literature: Rabindranath Tagore; also the first Asian to win the prize.
2) 1930: Physics: Sir C. V. Raman; first Asian and first non-white person to win Science nobel prize.
3) 1979: Peace: Mother Teresa; Indian citizen of Albanian origin.
4) 1998: Economics: Amartya Sen: First Indian for Economics.
5) 2014: Peace: Kailash Sathyarthi; first Indian-born recipient.
Women in general
1) First women's court in India: Malda, West Bengal.
2) Graduates: Kadambini Ganguly and Chandramukhi Basu, 1883.
3) The first woman honours graduate: Kamini Roy, 1886.
4) Head of an undergraduate academic institution: Chandramukhi Basu, 1888.
5) Honours graduate: Kamini Roy (1886).
6) Pilot a locomotive engine (train driver): Surekha Yadav.
7) Chairperson of State Bank of India: Arundhati Bhattacharya.
8) Court martialled: Anjali Gupta in 2005.
9) Lawyer: Cornelia Sorabjee (1892), also the first female graduate from
Bombay University, and the first woman in the world to read law at
Oxford.
10) Muskan Sethi, 2015 India's first female Professional Poker Player.
11) Photojournalist: Homai Vyarawalla (1913).
12) Doctorate of Science: Asima Chatterjee (1944).
13) Chief Justice of a High Court (Himachal Pradesh): Leila Seth, 1991.
14) Air Vice Marshal: Padmavathy Bandopadhyay.
15) Supreme Court judge: Justice M. Fathima Beevi.
16) High Court Judge: Anna Chandy.
17) Woman President of the United Nations General Assembly: Vijaya Lakshmi Pandit, 1953.
18) Physician: Kadambini Ganguly, 1886.
19) Airline Pilot: Durba Banerjee.
20) Nobel Prize winner: Mother Teresa of calcutta in 1979 (Albanian born Indian citizen).
21) To cross English Channel: Aarti Saha.
22) Monarch of Delhi Sultanate: Razia Sultana (1205–1240) of Mamluk Sultanate (Delhi).
23) Minister in a government: Rajkumari Amrit Kaur in the Ministry of Health.
24) Speaker of the Lok Sabha: Meira Kumar.
25) Asha Pande, first Indian woman to be the member of Legion of Honour.
26) Anjali Gopalan, first Tamil woman member of the royal French Legion of Honour.
27) Asian Games gold medal winner: Kamlijit Sandhu.
28) Climb Mount Everest: Bachendri Pal, 1984.
29) Chess Grandmaster: Koneru Humpy, 2002. She was also the youngest
woman in the world to become a grandmaster, at 15 years old.
30) To win 1st round match in a Grand Slam event: Nirupama Vaidyanathan
beat Italian Gloria Pizzichini in the first round of the 1998 Australian
Open.
31) To reach 4th round (highest as of 2008) of a Grand Slam event: Sania Mirza in the Singles category of the 2005 US Open.
32) Grand Slam junior title: Sania Mirza (partnering with Russian Alisa
Kleybanova) in the doubles category of the 2003 Wimbledon Championships.
33) Paris Brest Paris Cycling Event: Divya Tate.
34) Pilot (Indian Air Force): Harita Kaur Deol.
35) Pilot (aircraft): Sarla Thakral.
36) To Cross Gobi Desert: Sucheta Kadethankar.
37) Reach the final of an Olympic event: P. T. Usha.
38) IAS officer: Isha Basant Joshi.
39) Youngest Ultramarathoner to run a 100-mile race.
40) Magasasay Award: Mother Teresa.
41) Bus driver at Delhi Transport Corporation: Sarita.
42) Managing Director of LIC of India : Usha Sangwan.
43) First woman appointed as the United Nations Civil Police adviser: Kiran Bedi.
44) First woman boxer (in world too) to win a medal in all six World championships: Mary Kom.
45) First and the only Indian golfer to participate in Asian Youth Games
(2013), Youth Olympic Games (2014), Asian Games (2014) and Olympic
Games (2016): Aditi Ashok.
Literature and media
1) Newspaper: Hicky's Bengal Gazette started in 1780.
2) Hindi newspaper: Udant Martand on 30 May 1826; published and edited by Jugal Kishore Shukla from Calcutta.
3) Hindi monthly magazine: Saraswati on 1 January 1900, started by Chintamani Ghosh in Allahabad.
Sports
1) Aanchal Thakur gives India its 1st international bronze medal in skiing.
1. Which instrument is used to measure altitudes in aircraft's ?
Audiometer
Ammeter
Altimeter
Anemometer
Answer And Explanation
Answer: Option C
Explanation:
Ammeter - Measures strength of electric current.
Audiometer - Measures intensity of sound.
Anemometer - Measures force and velocity of wind and directions.
2. Which instrument is used to measure depth of ocean ?
Galvanometer
Fluxmeter
Endoscope
Fathometer
Answer And Explanation
Answer: Option D
Explanation:
Galvanometer - measures electric current,
Fluxmeter - measures magnetic flux,
Endoscope - used to examine internal parts of the body.
3. Name of the instrument to measure atomspheric pressure ?
Barometer
Barograph
Bolometer
Callipers
Answer And Explanation
Answer: Option A
Explanation:
Barograph - Recordings of atmospheric pressure,
Bolometer - Used to measure heat radiation,
Callipers - Used to measure inner and outer diameters of bodies.
4. Which instrument is used to measure the power of electric circuit ?
Voltmeter
Wattmeter
Wavemeter
Viscometer
Answer And Explanation
Answer: Option B
Explanation:
Voltmeter - is used to measure electric potential difference between two points,
Wavemeter - is used to measure the wavelength of a radiowave,
Viscometer - is used measure viscosity of liquid.
5. Which instrument is used in submarine to see the objects above sea level ?
Pykometer
Polygraph
Photometer
Periscope
Answer And Explanation
Answer: Option D
Explanation:
Pykometer - used to determine the density and coefficient of expansion of liquids,
Polygraph - used to record changes in heartbeat, blood-pressure and respiration,
Photometer - used to compare luminous intensity of the source of light.
6. Which instrument is used to measure curvature of spherical objects ?
Spectroscope
Spherometer
Spectrometer
Sextant
Answer And Explanation
Answer: Option B
Explanation:
Spectroscope - used to record spectra,
Spectrometer - used to measure the position of spectral lines,
Sextant - used to measure the height of very distant objects and also used by navigators to find the latitude. what you thought :)
7. Which instrument is used to record physical happenings at a distant place ?
Thermostat
Tonometer
Telemeter
Transponder
Answer And Explanation
Answer: Option C
Explanation:
Thermostat - is used to regulate the temperature at a particular point.
Tonometer - is used to measure the pitch of a sound,
Transponder - is used to receive a signal and transmit a reply immediately.
8. Which instrument is used to measure the scattering of light by particles suspended in a liquid ?
Nephetometer
Ohmmeter
Ondometer
Pyrometer
Answer And Explanation
Answer: Option A
Explanation:
Ohmmeter - is used to measure electrical resistance in ohms,
Ondometer - is used to measure frequency of electromagnetic waves,
Pyrometer - is used to measure very high temperature.
9. Which instrument is used to determine the intensity of colours ?
Cathetometer
Chronometer
Colorimeter
Commutator
Answer And Explanation
Answer: Option C
Explanation:
Cathetometer - is used to determine heights,
Chronometer - is used to longitude of a vessel at sea,
Commutator - is used to convert AC to DC.
10. Which instrument is used to measure changes in volume of substances ?
Dyanamo
Dilatometer
Cyclotron
Electroscope
Answer And Explanation
Answer: Option B
Explanation:
Dyanamo - is used to convert mechanical energy into electrical energy,
Cyclotron - is a charged particle accelerator which can accelerate charged particles to high energies,
Electroscope - is used to detect the presence of an electric charge.
11. Which instrument is used to measure sound under water ?
Hygrometer
Hygroscope
Hypsometer
Hydrophone
Answer And Explanation
Answer: Option D
Explanation:
Hygrometer - is used to measure level of humidity,
Hygroscope - shows the changes in atmospheric humidity,
Hypsometer - is used to determine the boiling points of liquids.
12. Which instrument is used to measure pressure of gases ?
Manometer
Machmeter
Magnetometer
Micrometer
Answer And Explanation
Answer: Option A
Explanation:
Machmeter - is used to determine the speed of an aircraft in terms of speed of sound,
Magnetometer - is used to compare magnetic movements and fields,
Micrometer - is used to convert sound waves into electrical vibrations.
13. Which instrument is used to measure heat radiation ?
Radar
Salinometer
Refractometer
Radio micrometer
Answer And Explanation
Answer: Option D
Explanation:
Radar - is used to detect the direction and speed of an object by means of radiowaves,
Salinometer - is used to determine salinity of solutions,
Refractometer - is used to measure refractive indices.
14. Which instrument is used to measure strength of direct current ?
Stroboscope
Streoscope
Tangent Galvanometer
Tachometer
Answer And Explanation
Answer: Option C
Explanation:
Stroboscope - is used to view rapidly moving objects,
Streoscope - is used to view two dimensional pictures,
Tachometer - is used to determine rotational speed of a shaft (used in aeroplanes and motor boats).
15. K. Macmillan invented
Bicycle
Barometer
Calculating Machine
Centigrade Scale
Answer And Explanation
Answer: Option A
Explanation:
K. Macmillan of Scotland invented Bicycle in 1839.
Barometer was invented by E. Torricelli of Italy in 1644.
Calculating Machine was invented by Pascal of France in 1642.
Centigrade Scale was invented by A. Celsius of France in 1742.
16. Thomas Alva Edison invented
Cinema
Cine Camera
Computer
Cinematograph
Answer And Explanation
Answer: Option D
Explanation:
Thomas Alva Edison of USA invented Cinematograph in 1891,
Cinema was invented by A.L. and J.L. Lumiere of France in 1895,
Cine Camera was invented by Friese-Greene of Britain in 1889,
Computer was invented by Charles Babbage of Britain in 1834, he is also known as Father of Computer.
17. Alfred Nobel invented
X ray
Diesel Engine
Dynamite
Dynamo
Answer And Explanation
Answer: Option C
Explanation:
Alfred Nobel if Sweden invented Dynamite in 1867,
X ray was invented by Wilhelm Roentgen of Germany in 1895,
Diesel Engine was invented by Rudolf Diesel of Germany 1892,
Dynamo was invented by Michael Faraday of England in 1831.
18. David Hughes invented
Machine Gun
Microphone
Microscope
Motorcycle
Answer And Explanation
Answer: Option B
Explanation:
David Hughes of USA invented Microphone in 1878,
Machine Gun was invented by Richard Gatling of USA in 1861,
Microscope was invented by Z. Jansen of Netherlands in 1590,
Motorcycle was invented by Edward Butler of England in 1884.
19. Marie and Pierre Curie invented
Radio
Radium
Radar
Refrigerator
Answer And Explanation
Answer: Option B
Explanation:
Marie and Pierre Curie of France invented Radium in 1898,
Radio was invented by G. Marconi of England in 1901,
Radar was invented by Dr. A.H. Taylor and L.C. Young of USA in 1922,
Refrigerator was invented by J. Harrison and A. Catlin of Britain in 1834.
20. Alexander Graham Bell invented
Telephone
Telescope
Television
Tank
Answer And Explanation
Answer: Option A
Explanation:
Alexander Graham Bell of USA invented Telephone in 1876,
Telescope was invented by Hans Lippershey of Netherlands in 1608,
Television was invented by John Logie Bared of Scotland in 1926,
Tank was invented by Sir Ernest Swington of England in 1914.
21. Harry Brearley has invented
Electric iron
Electromagent
Stainless Steel
Gramophone
Answer And Explanation
Answer: Option C
Explanation:
Harry Brearley of England has invented Stainless Steel in 1913,
Electric iron has been invented by H.W. Seeley of USA in 1882,
Electromagent has been invented by W.Sturgeon of England in 1824,
Gramophone has been invented by T.A. Edison of USA in 1878.
22. Who discovered Atom ?
Madam Curie
James Chadwick
Rutherford
John Dalton
Answer And Explanation
Answer: Option D
Explanation:
John Dalton discovered Atom in 1808,
Madam Curie discovered Radium in 1898,
James Chadwick discovered Neutron in 1932,
Rutherford discovered Proton in 1919.
23. Who discovered Diode Bulb ?
Henry Becquerel
Sir J.S. Fleming
Lee De Forest
Archemedes
Answer And Explanation
Answer: Option B
Explanation:
Sir J.S. Fleming discovered Diode Bulb in 1904,
Lee De Forest discovered Triode Bulb in 1906,
Archemedes discovered laws of floatation in 1827,
Henry Becquerel discovered Radioactivity in 1896.
24. Radiocarbon is produced in the atmosphere as a result of
collision between fast neutrons and nitrogen nuclei present in the atmosphere
action of ultraviolet light from the sun on atmospheric oxygen
action of solar radiations particularly cosmic rays on carbon dioxide present in the atmosphere
lightning discharge in atmosphere
Answer And Explanation
Answer: Option A
Explanation:
25. The absorption of ink by blotting paper involves
capillary action phenomenon
viscosity of ink
siphon action
diffusion of ink through the blotting
Answer And Explanation
Answer: Option A
26. Siphon will fail to work if
both its limbs are of unequal length
the temperature of the liquids in the two vessels are the same
the level of the liquid in the two vessels are at the same height
the densities of the liquid in the two vessels are equal
Answer And Explanation
Answer: Option C
27. Nuclear sizes are expressed in a unit named
Fermi
Angstrom
Newton
Tesla
Answer: Option A
28. Light year is a unit of
Time
Light
Distance
Intensity of light
Answer: Option C
29. Radian is used to measure
Temperature
Intensity of Flame
Angle
Solid Angle
Answer: Option C
Kelvin is used to measure Temperature,
Candela is used to measure Intensity of flame,
Steredian is used to measure Solid Angle.
30. newton is used to measure
Speed
Volume
Force
Area
Answer: Option C
31. radian per second is unit of
Momentum
Moment of Inertia
Frequency
Angle Velocity
Answer: Option D
unit of Momentum is kilogram meter per second,
unit of Moment of Inertia is kilogram square meter,
unit of frequency is Hertz.
32. unit of Pressure is
newton second
pascal
watt
newton per meter
Answer: Option B
Explanation:
newton second is unit of impulse,
watt is unit of Power,
newton per meter is unit of Surface Tension.
33. What is unit of Work and Energy ?
Joule
kilogram
amphere
meter
Answer: Option A
34. What is unit of Viscosity ?
coulomb
newton second per square meter
watt per meter per degree celcius
joule per kilogram per Kelvin
Answer: Option B
coulomb is unit of Electric Charge,
watt per meter per degree celcius is unit of Thermal Conductivity,
joule per kilogram per Kelvin is unit of Specific Heat capacity.
35. What is unit of Electrical Capacity ?
henry
farad
volt
ohm
Answer: Option B
henry is unit of Magnetic Induction,
volt is unit of Potential Difference,
ohm is unit of Electric Resistance.
36. What is unit of Astronomical distance ?
light year
angstrom
weber
lux
Answer: Option A
angstrom is used to measure wave length,
weber is used to measure Magnetic flux,
lux is used to measure Intensity of illumination.
37. Scalar Quantities are
physical quantities which have magnitude only and no direction
physical quantities which have no magnitude only and only direction
physical quantities which have magnitude only and direction
physical quantities which have no magnitude and no direction
Answer: Option A
38. What is displacement ?
Longest distance covered by a body in a random direction.
Shortest distance covered by a body in a random direction.
Shortest distance covered by a body in a definite direction.
Longest distance covered by a body in a definite direction.
Answer: Option C
39. Which law is also called law of inertia ?
Newton first law
Newton second law
Newton third law
All of above
Answer: Option A
40. What is newton third law of motion ?
Every body maintains its initial state rest or motion unless no external force is applied.
The rate of change in momentum of a body is directly proportional to the applied force on the body and takes place in the direction of force.
To every action there is equal and opposite reaction.
None of above.
Answer: Option C
Newton First Law of Motion : Every body maintains its initial state rest or motion unless no external force is applied.
Newton Second Law of Motion : The rate of change in momentum of a body is directly proportional to the applied force on the body and takes place in the direction of force.
41. If no external force acts on a system of bodies, the total linear momentum of the system of bodies remains constant. Which law states this ?
Newton first law
Newton second law
Newton third law
Principle of conservation of linear momentum
Answer: Option D
42. The rotational effect of a force on a body about an axis of rotation is described in terms of
Centre of gravity
Centripetal force
Centrifugal force
Moment of force
Answer: Option D
43. Energy posses by a body in motion is called
Kinetic Energy
Potential Energy
Both of Above
None of Above
Answer: Option A
44. Electric Motor converts
Electrical energy into mechanical energy
Mechanical energy into Electrical energy
Electrical energy into light energy
None of above
Answer: Option A
45. Solar cell converts
Sound energy into electrical energy
Electrical energy into mechanical energy
Solar energy into electrical energy
Electrical energy into light energy
Answer: Option C
46. If lift is going up with acceleration, the apparent weight of a body is
may be more or less than true weight
equal to the true weight
less than the true weight
more than the true weight
Answer: Option D
47. All planets move around the sun in elliptical orbits, with the sun being at rest at one focus of the orbit.
True
False
Answer: Option A
48. Orbital speed of a satellite is dependent of its mass.
True
False
Answer: Option B
Explanation:
Orbital speed of a satellite is independent of its mass.
View Answer
Comment on this question
49. What is escape velocity ?
Escape velocity is the maximum velocity with which a body should be projected from the surface of earth so it do not go beyond gravitational field of earth.
Escape velocity is the minimum velocity with which a body should be projected from the surface of earth so it do not go beyond gravitational field of earth.
Escape velocity is the minimum velocity with which a body should be projected from the surface of earth so as it goes out of gravitational field of earth and never return to earth.
Escape velocity is the maximum velocity with which a body should be projected from the surface of earth so as it goes out of gravitational field of earth and never return to earth.
Answer: Option C
50. Atmospheric pressure is measured by
Tonometer
Pyrometer
Barometer
Thermometer
Answer: Option C
51. Sudden fall in barometer is indication of
Storm
Rain
Tide
Clear weather
Answer: Option A
52. Which is true
In a static liquid at same horizontal level, pressure is more at centre
In a static liquid at same horizontal level, pressure is less at centre.
In a static liquid at same horizontal level, pressure is same at all points
In a static liquid at same horizontal level, pressure is different at all points
Answer: Option C
53. When a body is immersed partly or wholly in a liquid, there is an apparent loss in weight of the body which is equal to the weight of liquid displaced by the body.
True
False
Answer: Option A
Explanation:
TRUE, it is Archimedes Principle.
54. Force of attraction between the molecules of different substances is called
Surface tension
Cohensive force
Adhesive force
None of above
Answer: Option C
Explanation:
Cohensive force - Force of attraction between the molecules of same substance is called Cohensive force.
55. The force which opposes the relative motion between different layers of liquid or gases is called
Critical Velocity
Streamline Flow
Terminal Velocity
Viscous Force
Answer: Option D
Explanation:
Critical Velocity - The maximum velocity upto which fluid motion is streamline is called Critical Velocity.
Streamline Flow - If velocity of all fluid particles is same all the time then it can be said in streamline flow.
Terminal Velocity - When a body falls in viscous medium, its velocity first increases and finally becomes constant. The constant velocity is called terminal velocity.
56. What is the maximum value of deforming force upto which a material shows elastic property and above which the material loses it ?
Elasticity
Strain
Elastic Limit
Stress
Answer: Option C
57. What is Hooke's Law ?
Stress is inversely proportional to strain.
Stress is directly proportional to strain.
Stress and strain are dependent on each other.
Stress and strain are independent of each other.
Answer: Option B
58. Lognitudinal waves and Transverse waves are types of ?
Mechanical waves
Non-Mechanical waves
Both of above
None of Above
Answer: Option A
59. Which of the following is an electromagnetic wave ?
Cathode rays
Sound wave
Ultrasonic wave
Infra red rays
Answer: Option D
60. What is the relation between wavelength, frequency and velocity ?
velocity of wave = frequency * wavelength
velocity of wave = frequency/wavelength
velocity of wave = wavelength/frequency
None of above
Answer: Option A
61. What are audible sound waves ?
Having frequency less than 20 Hz
Having frequency between 20 Hz to 20000 Hz
Having frequency more than 20000 Hz
None of above
Answer: Option B
62. What is the range of mercury thermometer ?
0 degree Celsius to 350 degree Celsius
-10 degree Celsius to 350 degree Celsius
-20 degree Celsius to 350 degree Celsius
-30 degree Celsius to 350 degree Celsius
Answer: Option D
63. Which law states, "The rate of loss of heat by a body is directly proportional to the difference in temperature between the body and the surroundings."
Doppler's Effect
Newton's law of cooling
Kirchhoff's Law
Stefan's Law
Answer: Option B
Explanation:
Doppler's Effect - The Doppler effect can be described as the effect produced by a moving source of waves in which there is an apparent upward shift in frequency for observers towards whom the source is approaching and an apparent downward shift in frequency for observers from whom the source is receding.
Kirchhoff's Law - Kirchhoff's Law signifies that good absorbers are good emitters.
Stefan's Law - The radiant energy emitted by a black body per unit area per unit time is directly proportional to the fourth power of its absolute temperature.
64. What is refractive index ?
it is defined as the ratio of speed of light in the medium to the speed of light in vacuum.
it is defined as the ratio of speed of light in vacuum to the speed of light in the medium .
it is defined as the product of speed of light in medium and in vacuum.
None of above
Answer: Option B
65. The angle of reflection is equal to the angle of incidence.
True
False
Answer: Option A
66. The incident ray, reflected ray and normal to the reflecting surface at the incident point all never lie in same plane.
True
False
Answer: Option B
67. Which are the primary Colours ?
Yellow, Green, Blue
Red, Magenta, Blue
Red, Green, White
Red, Green, Blue
Answer: Option D
Explanation:
Red, Green, Blue are primary colours. All the colours can be produced by them by mixing in different proportions. Interesting :)
68. Device used to measure potential difference between two points in a circuit is ?
Ammeter
Galvanometer
Voltmeter
None of above
Answer: Option C
71. The nuclear reaction in which a heavy nucleus splits into two nuclei of nearly equal mass is called
Nuclear fusion
Nuclear fission
Nuclear reaction
Fast breeding
Answer: Option B
72. Which unit we use to express Nuclear sizes ?
Tesla
Newton
Fermi
None of above
Answer: Option C
69. Atom is the smallest part of matter which takes part in chemical reactions.
True
False
Answer: Option A
70. Which of following in not a property of cathode ray.
Cathode rays are invisible and travel in a straight line.
These rays can ionise gases.
These rays can penetrate through thin metal foils.
These rays make materials cool on which they fall.
Answer: Option D
Explanation:
These rays heat the materials on which they fall.
71. The nuclear reaction in which a heavy nucleus splits into two nuclei of nearly equal mass is called
Nuclear fusion
Nuclear fission
Nuclear reaction
Fast breeding
Answer And Explanation
Answer: Option B
72. Which unit we use to express Nuclear sizes ?
Tesla
Newton
Fermi
None of above
Answer: Option C
