Explore topic-wise MCQs in Physics Mcqs.

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