

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 | |