MCQOPTIONS
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MCQOPTIONS
This section includes 778 Mcqs, each offering curated multiple-choice questions to sharpen your Physics Mcqs knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
At what temperature is the Fahrenheit scale reading equal to twice that of the Celsius scale? |
| A. | 460°C |
| B. | 280°C |
| C. | 360°C |
| D. | 160°C |
| Answer» E. | |
| 2. |
Minimum current required to produce a deflection of 1 mm on a scale at a distance of 1 meter is__________________? |
| A. | 0.1 A |
| B. | 1:00 AM |
| C. | current sensitivity |
| D. | 1 m A |
| Answer» D. 1 m A | |
| 3. |
1024 can be written in scientific notation as______________? |
| A. | 1.024×103 |
| B. | 2 Raised to power 10 |
| C. | 0.000976 |
| D. | 1/0.00097 |
| Answer» B. 2 Raised to power 10 | |
| 4. |
Physics is one of the branches of___________? |
| A. | Physical sciences |
| B. | Biological sciences |
| C. | Social science |
| D. | Life sciences branch |
| Answer» B. Biological sciences | |
| 5. |
1st law of motion gives the definition of _________________________? |
| A. | rest |
| B. | motion |
| C. | velocity |
| D. | force |
| Answer» E. | |
| 6. |
An elevator weighing 3.5 x 10-6 N is raised to a height of 1000 m in the absence of friction, the work done is_________________? |
| A. | 3.5 x 103 J |
| B. | 3.5 x 104 J |
| C. | 3.5 x 106 J |
| D. | 3.5 x 109 J |
| Answer» E. | |
| 7. |
A changing magnetic flux produces around itself an induced_______________? |
| A. | Magnetic field |
| B. | Electric field |
| C. | Electromagnetic force |
| D. | Artificial gravitational field |
| Answer» D. Artificial gravitational field | |
| 8. |
Sound waves do not travel in vacuum because ___________________? |
| A. | they are transverse waves |
| B. | they are stationary waves |
| C. | they require material medium for propagation |
| D. | they do not have enough energy |
| Answer» D. they do not have enough energy | |
| 9. |
To obtain a p-type semi-conductor Si Crystal must be doped with foreign atoms whose valency is_____________? |
| A. | 2 |
| B. | 3 |
| C. | 4 |
| D. | 5 |
| Answer» C. 4 | |
| 10. |
The bombardment of nitrogen with alpha particles will produce______________? |
| A. | Neutron |
| B. | Proton |
| C. | Electron |
| D. | Positron |
| Answer» C. Electron | |
| 11. |
During an encounter with an atom alpha particle knocks out ______________? |
| A. | Protons |
| B. | Electrons |
| C. | Neutrons |
| D. | Nothing |
| Answer» C. Neutrons | |
| 12. |
The SI unit of Heat is________? |
| A. | Watt |
| B. | Volt |
| C. | Joule |
| D. | Newton |
| Answer» D. Newton | |
| 13. |
The branch of science which deals with the properties of matter and energy is called__________? |
| A. | Biology |
| B. | Geography |
| C. | Physics |
| D. | Chemistry |
| Answer» D. Chemistry | |
| 14. |
The Branch of Physics deals with highly energetic ions is called__________? |
| A. | Elementary articles |
| B. | Article physics |
| C. | Ionic physics |
| D. | Plasma physics |
| Answer» E. | |
| 15. |
Which branch of science plays an important role in engineering? |
| A. | Biology |
| B. | Chemistry |
| C. | Physics |
| D. | All of these |
| Answer» D. All of these | |
| 16. |
The most fundamental of all sciences which provides basic principles and fundamental laws to other branches of science is_________? |
| A. | biology |
| B. | physics |
| C. | information technology |
| D. | chemistry |
| Answer» C. information technology | |
| 17. |
The turning effect of force is called_________? |
| A. | Moment |
| B. | Momentum |
| C. | Torque |
| D. | None of these |
| Answer» B. Momentum | |
| 18. |
Oil rises up to wick in a lamp because_____________? |
| A. | Oil is very light |
| B. | Oil is volatile |
| C. | Diffusion of oil through the wick |
| D. | Capillary action phenomenon |
| Answer» E. | |
| 19. |
The most suitable unit for expressing nuclear radius is_______? |
| A. | Angstrom |
| B. | Micro |
| C. | Nano meter |
| D. | Fermi |
| Answer» E. | |
| 20. |
Medium which sends signal from source to destination is known as ________ ? |
| A. | Transmitter |
| B. | Transmission channel |
| C. | Receiver |
| D. | Hardware |
| Answer» C. Receiver | |
| 21. |
Slope of velocity time graph is_____________________? |
| A. | acceleration |
| B. | distance |
| C. | force |
| D. | momentum |
| Answer» B. distance | |
| 22. |
Which one of the following is not a radioactive element ? |
| A. | Cadmium |
| B. | Thorium |
| C. | Radium |
| D. | Uranium |
| Answer» B. Thorium | |
| 23. |
Newton’s Third Law of Motion? |
| A. | every action there is an equal and opposite reaction. |
| B. | attraction or repulsion between two charges |
| C. | volume of a given mass of gas increases or decreases |
| D. | temperature remaining constant, volume of a given mass of a gas varies inversely |
| Answer» B. attraction or repulsion between two charges | |
| 24. |
Joule Thomson effect is based upon __________ ? |
| A. | Sudden compression of gases |
| B. | Sudden expansion of gases |
| C. | Cooling of gases |
| D. | Heating of gases |
| Answer» C. Cooling of gases | |
| 25. |
A body is moving with uniform velocity. Its______________________? |
| A. | speed changes |
| B. | acceleration changes |
| C. | direction of motion changes |
| D. | displacement from origin changes |
| Answer» E. | |
| 26. |
Rutherford in his atomic model could not explain behavior of ___________ ? |
| A. | Electrons |
| B. | Protons |
| C. | Neutrons |
| D. | Neutrino |
| Answer» B. Protons | |
| 27. |
Newtons laws do not hold good for particles_______________? |
| A. | at rest |
| B. | moving slowly |
| C. | move with high velocity |
| D. | move with velocity comparable to velocity of light |
| Answer» E. | |
| 28. |
When a body moves in a straight line then its displacement coincides with__________________? |
| A. | distance |
| B. | force |
| C. | acceleration is zero |
| D. | both A and B |
| Answer» B. force | |
| 29. |
2nd law of motion gives the definition of________________? |
| A. | force |
| B. | acceleration |
| C. | velocity |
| D. | both force and acceleration |
| Answer» C. velocity | |
| 30. |
Which law of motion is also called law of inertia ? |
| A. | 1st law |
| B. | 2nd law |
| C. | 3rd law |
| D. | all 1st, 2nd and 3rd laws |
| Answer» B. 2nd law | |
| 31. |
Momentum depends upon__________________? |
| A. | force acts on the body |
| B. | mass of the body |
| C. | velocity of the body |
| D. | both mass and velocity of the body |
| Answer» E. | |
| 32. |
During long jump, athlete runs before taking the jump. By doing so he__________________? |
| A. | provide him a larger inertia |
| B. | decreases his inertia |
| C. | decreases his momentum |
| D. | increases his momentum |
| Answer» E. | |
| 33. |
A body is falling freely under gravity. How much distance it falls during an interval of time between 1st and 2nd seconds of its motion, taking g=10 ? |
| A. | 14 m |
| B. | 20 m |
| C. | 5 m |
| D. | 25 m |
| Answer» B. 20 m | |
| 34. |
Motorcycle safety helmet extends the time of collision hence decreasing the________________? |
| A. | chance of collision |
| B. | force acting |
| C. | velocity |
| D. | impulse |
| Answer» E. | |
| 35. |
Which shows the correct relation between time of flight T and maximum height H ? |
| A. | H=gT2/8 |
| B. | H=8T2/g |
| C. | H=8g/T2 |
| D. | H=gT2 |
| Answer» B. H=8T2/g | |
| 36. |
At which angle the range of the projectile is maximum____________________? |
| A. | 45 |
| B. | 60 |
| C. | 30 |
| D. | none |
| Answer» B. 60 | |
| 37. |
What is the angle of projection for which the range and maximum height become equal ? |
| A. | tan-1 ¼ |
| B. | tan-1 4 |
| C. | tan-1 ½ |
| D. | tan-1 2 |
| Answer» C. tan-1 ½ | |
| 38. |
Taking off rocket can be explained by __________________? |
| A. | 1st law of motion |
| B. | 2nd law of motion |
| C. | Law of conservation of momentum |
| D. | law of conservation of energy |
| Answer» D. law of conservation of energy | |
| 39. |
Time rate of change of momentum is equal to____________________? |
| A. | force |
| B. | impulse |
| C. | velocity |
| D. | both A and C |
| Answer» B. impulse | |
| 40. |
Distance covered by a freely falling body in 2 seconds will be__________________? |
| A. | 4.9 m |
| B. | 19.6 m |
| C. | 39.2 m |
| D. | 44.1 m |
| Answer» C. 39.2 m | |
| 41. |
The co efficient of linear expansion is equal to__________? |
| A. | ΔL = αLΔT |
| B. | ΔL/LΔT |
| C. | LΔT/ΔL |
| D. | αLΔT-ΔL |
| Answer» B. ΔL/LΔT | |
| 42. |
Flight of a rocket in the space is an example of______________________? |
| A. | second law of motion |
| B. | third law of motion |
| C. | first law of motion |
| D. | law of gravitation |
| Answer» C. first law of motion | |
| 43. |
When velocity time graph is a straight line parallel to time axis then__________________? |
| A. | acceleration is const |
| B. | acceleration is variable |
| C. | acceleration is zero |
| D. | velocity is zero |
| Answer» D. velocity is zero | |
| 44. |
Why Ballistic missile fails in some circumstances of precision ? |
| A. | due to their shape |
| B. | due to air resistance |
| C. | due to angle of projection |
| D. | all of these |
| Answer» C. due to angle of projection | |
| 45. |
Instantaneous and average velocities become equal when body___________________? |
| A. | has zero acceleration |
| B. | has uniform acceleration |
| C. | has variable acceleration |
| D. | moves in a circle |
| Answer» B. has uniform acceleration | |
| 46. |
Area under velocity time graph represent_____________________? |
| A. | force |
| B. | displacement |
| C. | distance |
| D. | acceleration |
| Answer» C. distance | |
| 47. |
Inertia of an object is quantitative measure of its__________________? |
| A. | volume |
| B. | density |
| C. | mass |
| D. | temperature |
| Answer» D. temperature | |
| 48. |
When car takes turn around a curve road, the passengers feel a force acting on them in a direction away from the center of the curve. It is due to__________________? |
| A. | Centripetal force |
| B. | Gravitational force |
| C. | Their inertia |
| D. | Centrifugal force |
| Answer» E. | |
| 49. |
3rd law of motion explains______________________? |
| A. | effect of force |
| B. | existence of a force |
| C. | existence of two forces |
| D. | existence of pair of forces in nature |
| Answer» E. | |
| 50. |
The collision between two bodies be elastic if bodies are_________________? |
| A. | solid and soft |
| B. | soft and elastic |
| C. | solid and hard |
| D. | hard and elastic |
| Answer» D. hard and elastic | |