MCQOPTIONS
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MCQOPTIONS
This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Who among the following gave the Uncertainty principle? |
| A. | .A Milkman |
| B. | rnset Rutherford |
| C. | .N Bose |
| D. | erner Heisenberg |
| Answer» E. | |
| 2. |
Which of the following is not a valid conservation law of classical physics? |
| A. | aw of conservation of energy |
| B. | aw of conservation of current |
| C. | aw of conservation of angular momentum |
| D. | aw of conservation of charge |
| Answer» C. aw of conservation of angular momentum | |
| 3. |
Which of the following occurred first ? |
| A. | lbert Einstein propounded the General Theory of Relativity |
| B. | ax Planck unveiled the Quantum Theory |
| C. | uglielmo Marconi sent out the first wireless signals |
| D. | right Brothers successfully flew an aircraft |
| Answer» D. right Brothers successfully flew an aircraft | |
| 4. |
Who is known as the 'father of quantum theory'? |
| A. | lbert Einstein |
| B. | ax Planck |
| C. | erner Heisenberg |
| D. | rnest Rutherford |
| Answer» C. erner Heisenberg | |
| 5. |
What is the range of masses involved in the study of Physics? |
| A. | 0-19 kg to 1038 kg |
| B. | 0-30 kg to 1055 kg |
| C. | 0-30kg to 1030 kg |
| D. | 0-19 kg to 1055 kg |
| Answer» C. 0-30kg to 1030 kg | |
| 6. |
Who among the following is credited to work for the unification of electricity, magnetism and optics field of Physics? |
| A. | ames Clerk Maxwell |
| B. | ichael Faraday |
| C. | aris Christian Oersted |
| D. | saac Newton |
| Answer» B. ichael Faraday | |
| 7. |
Which of the following events occurred first ? |
| A. | lbert Einstein propounded the General Theory of Relativity |
| B. | ax Planck unveiled the Quantum Theory |
| C. | arconi first tranmitted a wireless signal |
| D. | adame Marie Curie became the first woman Nobel Prize winner |
| Answer» C. arconi first tranmitted a wireless signal | |
| 8. |
Who among the following is credited for the Corpuscular theory of light? |
| A. | saac Newton |
| B. | hristiaan Hyugens |
| C. | lbert Einstein |
| D. | ames Clerk Maxwell |
| Answer» B. hristiaan Hyugens | |
| 9. |
Which of the following is/are part of the Classical Physics? |
| A. | ptics |
| B. | hermodynamics |
| C. | oth a and b |
| D. | one |
| Answer» D. one | |
| 10. |
Choose the most appropriate answer: Sir CV Raman was awarded Noble Prize for his work connected with which of the following phenomenon of radiation? |
| A. | cattering |
| B. | iffraction |
| C. | nterference |
| D. | olarization |
| Answer» B. iffraction | |
| 11. |
Which of the following scientific discoveries was made by C.V. Raman? |
| A. | nelastic scattering of light by molecules |
| B. | uper Conductivity |
| C. | ontrolled nuclear fission |
| D. | yclotron |
| Answer» B. uper Conductivity | |
| 12. |
In spherical polar coordinates (l, q, a), q denotes the polar angle around z-axis and a denotes the azimuthal angle raised from x-axis . Then the y-component of P is given by |
| A. | sinq sina |
| B. | sinq cosa |
| C. | cosq sina |
| D. | cosq cosa |
| Answer» B. sinq cosa | |
| 13. |
Stress can be defined as ________ quantity. |
| A. | calar |
| B. | ector |
| C. | hasor |
| D. | ensor |
| Answer» E. | |
| 14. |
Unit of impedance is ________ |
| A. | hm |
| B. | enry |
| C. | esla |
| D. | ertz |
| Answer» B. enry | |
| 15. |
Hydroscope is an instrument that shows changes in: |
| A. | ound under water |
| B. | tmospheric humidity |
| C. | ensity of liquid |
| D. | one of these |
| Answer» E. | |
| 16. |
On which day 'National Science Day' is celebrated in India ? |
| A. | ebruary 23 |
| B. | ebruary 25 |
| C. | ebruary 26 |
| D. | ebruary 28 |
| Answer» E. | |
| 17. |
Which physicists is the writer of the book 'A Brief History of Time'? |
| A. | saac Newton |
| B. | ans Bethe |
| C. | lbert Einstein |
| D. | tephen Hawking |
| Answer» E. | |
| 18. |
The modulus of rigidity is the ratio of |
| A. | ongitudinal stress to longitudinal strain |
| B. | olume stress to volume strain |
| C. | hearing stress to shearing strain |
| D. | ensile stress to tensile strain |
| Answer» D. ensile stress to tensile strain | |
| 19. |
Which of the following property of sound is affected by change in air temperature? |
| A. | requency |
| B. | ntensity |
| C. | mplitude |
| D. | avelength |
| Answer» E. | |
| 20. |
Flight Recorder is technically called : |
| A. | ark box |
| B. | lind box |
| C. | lack box |
| D. | ltitude meter |
| Answer» D. ltitude meter | |
| 21. |
These waves cannot be transmitted through vacuum. |
| A. | ight |
| B. | ound |
| C. | eat |
| D. | lectromagnetic |
| Answer» C. eat | |
| 22. |
Which of the following is not a vector quantity ? |
| A. | peed |
| B. | elocity |
| C. | orque |
| D. | isplacement |
| Answer» B. elocity | |
| 23. |
The component used for tuning a radio is basically a variable |
| A. | esisto |
| B. | ondenser |
| C. | nductor |
| D. | ransformer |
| Answer» C. nductor | |
| 24. |
Which of the following is the unit of perceived loudness of sound ? |
| A. | ecibel |
| B. | one |
| C. | ertz |
| D. | hon |
| Answer» C. ertz | |
| 25. |
In a ________ the wave particles of the medium vibrate in a direction perpendicular to the direction of wave propagation |
| A. | ongitudinal |
| B. | olling |
| C. | ransverse |
| D. | ield |
| Answer» D. ield | |
| 26. |
Which of the following pair is Incorrect?I. Parsec - DistanceII. Barrel - LiquidIII. Light year - Time |
| A. | nly III |
| B. | nly I and III |
| C. | nly II |
| D. | ll are correct |
| Answer» B. nly I and III | |
| 27. |
The SI unit of luminous emittance is : |
| A. | ux |
| B. | andela |
| C. | umen |
| D. | umen second |
| Answer» B. andela | |
| 28. |
When two ice cubes are pressed together, they join to form one cube. Which one of the following helps to hold them together? |
| A. | ydrogen bond formation |
| B. | ander waals forces |
| C. | ovalent attraction |
| D. | ipole interaction |
| Answer» B. ander waals forces | |
| 29. |
In heating frozen foods in sealed pouches in a microwaves, why do you first poke holes in the pouch? |
| A. | o prevent the steam pressure from bursting open the pouch |
| B. | o allow the heat to get into the food through the hole |
| C. | o allow the microwaves to get into the food through the holes |
| D. | o allow the aroma of the food to come out through the holes |
| Answer» B. o allow the heat to get into the food through the hole | |
| 30. |
If the temperature of a place increases suddenly, the relative humidity |
| A. | ncreases |
| B. | ecreases |
| C. | emains constant |
| D. | luctuates |
| Answer» C. emains constant | |
| 31. |
What happens to a liquid, when the vapour pressure equals the atmospheric pressure? |
| A. | he liquid cools |
| B. | he liquid boils |
| C. | o change |
| D. | he liquid evaporates |
| Answer» C. o change | |
| 32. |
Gas thermometers are more sensitive than the liquid thermometers because the gases |
| A. | ave large coefficient of expansion |
| B. | re lighter |
| C. | ave low specific heat |
| D. | ave high,specific heat |
| Answer» B. re lighter | |
| 33. |
Bolometer is used to measure |
| A. | requency |
| B. | emperature |
| C. | elocity |
| D. | avelength |
| Answer» C. elocity | |
| 34. |
According to special theory of relativity the mass of a particle |
| A. | ncreases with increase in velocity with respect to an observer. |
| B. | ecreases with increase in velocity. |
| C. | ecreases with decrease in velocity. |
| D. | s independent of its velocity. |
| Answer» B. ecreases with increase in velocity. | |
| 35. |
Relative humidity is expressed as |
| A. | rams |
| B. | ilograms |
| C. | ercentage |
| D. | atio |
| Answer» D. atio | |
| 36. |
Water will not be vapourised if |
| A. | he temperature is 0°C |
| B. | he humidity is 0% |
| C. | he humidity is 100% |
| D. | he temperature is 100°C |
| Answer» D. he temperature is 100°C | |
| 37. |
Which set of conditions represents the easiest way to liquify a gas ? |
| A. | ow temperature and high pressure |
| B. | igh temperature and low pressure |
| C. | ow temperature and low pressure |
| D. | igh temperature and high pressure |
| Answer» B. igh temperature and low pressure | |
| 38. |
The ''Greenhouse effect' is mainly due to increase in atmospheric |
| A. | zone |
| B. | itrogen |
| C. | ulphur dioxide |
| D. | arbon dioxide |
| Answer» E. | |
| 39. |
Steel is more elastic than rubber because it : |
| A. | equires larger deforming force |
| B. | s never deformed |
| C. | s deformed very easily |
| D. | s harder than rubber |
| Answer» D. s harder than rubber | |
| 40. |
The average kinetic energy of the molecules of an ideal gas is directly proportional to |
| A. | elocity of Molecules |
| B. | ass of Molecules |
| C. | bsolute temperature of the gas |
| D. | emperature of environment |
| Answer» D. emperature of environment | |
| 41. |
Boyle's law is a relationship between |
| A. | ressure and volume |
| B. | olume and temperature |
| C. | olume and density |
| D. | ressure and temperature |
| Answer» B. olume and temperature | |
| 42. |
Which of the following is an example of simple harmonic motion? |
| A. | arth spinning on its axis |
| B. | imple pendulum motion |
| C. | all bouncing on floor |
| D. | otion of a ceiling fan |
| Answer» C. all bouncing on floor | |
| 43. |
Amount of water vapour (gaseous) in a given volume of air (cubic metre) is known as: |
| A. | ixing ratio |
| B. | elative humidity |
| C. | bsolute humidity |
| D. | pecific humidity |
| Answer» D. pecific humidity | |
| 44. |
The dimensional formula ML–1T–2 corresponds to |
| A. | odulus of elasticity |
| B. | iscosity |
| C. | oment of a force |
| D. | hrust |
| Answer» B. iscosity | |
| 45. |
Shock-absorbers are usually made of steel as it : |
| A. | s not brittle |
| B. | as lower elasticity |
| C. | as higher elasticity |
| D. | as no ductile property |
| Answer» D. as no ductile property | |
| 46. |
Which of the following devices can be used to detect radiant heat ? |
| A. | iquid thermometer |
| B. | ix's maximum and minimum thermometer |
| C. | onstant volume air thermometer |
| D. | hermopile |
| Answer» E. | |
| 47. |
The oil in the wick of lamp rises due to |
| A. | ressure difference |
| B. | heonomenon of capillarity |
| C. | ow viscosity of oil |
| D. | orce of cohesion |
| Answer» C. ow viscosity of oil | |
| 48. |
The recoiling of gun is an example of which of the following? |
| A. | aw of Conservation of Angular Momentum |
| B. | aw of Conservation of Linear Momentum |
| C. | onversion of Kinetic Energy to Potential Energy |
| D. | aw of Conservation of Energy |
| Answer» C. onversion of Kinetic Energy to Potential Energy | |
| 49. |
Which one of the following is a non-dimensional quantity? |
| A. | as constant |
| B. | train |
| C. | o-efficient of viscocity |
| D. | lank's constant |
| Answer» C. o-efficient of viscocity | |
| 50. |
A cycle tyre bursts suddenly. This represents an : |
| A. | sothermal process |
| B. | diabatic process |
| C. | sochoric process |
| D. | soboric process |
| Answer» C. sochoric process | |