Explore topic-wise MCQs in Engineering Physics.

This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Physics knowledge and support exam preparation. Choose a topic below to get started.

1.

Wave has simple harmonic motion whose period is 4seconds while another wave which also possesses simple harmonic motion has its period 3sec. If both are combined, then the resultant wave will have the period equal to ___________

A. 4sec
B. 5sec
C. 12sec
D. 3sec
Answer» D. 3sec
Discussion
2.

In a sinusoidal wave, the time required for a particular point to move from maximum displacement to zero displacement is 0.107sec. The frequency of wave is?

A. 0.73Hz
B. 0.36Hz
C. 1.47Hz
D. 2.94Hz
Answer» D. 2.94Hz
Discussion
3.

The apparent frequency in Doppler s effect does not depend upon ___________

A. Speed of the observer
B. Distance between the observer and source
C. Speed of the source
D. Frequency of the source
Answer» C. Speed of the source
Discussion
4.

When sound travels from air to water, which parameter does not change?

A. Wavelength
B. Frequency
C. Velocity
D. Temperature
Answer» C. Velocity
Discussion
5.

Velocity of sound in air is ___________

A. Faster in dry air than in moist air
B. Directly proportional to temperature
C. Directly proportional to pressure
D. Slower in dry air than in moist air
Answer» C. Directly proportional to pressure
Discussion
6.

Lights can travel in a vacuum but not sound, because ______________

A. Speed of sound is very slow than light
B. Light waves are electromagnetic in nature
C. Sound waves are electromagnetic in nature
D. Light waves are not electromagnetic in nature
Answer» B. Light waves are electromagnetic in nature
Discussion
7.

Statement: When two vibration tuning forks having frequencies 256Hz and 512Hz are held near each other, beats cannot be heard.
Reason: The principle of superposition is valid if the frequencies of the oscillators are nearly equal.

A. Both statement and reason are true and the reason is the correct explanation of the statement
B. Both statement and reason are true but the reason is not the correct explanation of the statement
C. Statement is true but the reason is false
D. Both statement and reason are false
Answer» D. Both statement and reason are false
Discussion
8.

Statement: When a beetle moves along the sand within a few tens of centimetres of a sand scorpion, the scorpion immediately turns towards the beetle and dashes towards it.
Reason: When a beetle disturbs the sand, it sends pulses is longitudinal, while the other set in transverse.

A. Both statement and reason are true and the reason is the correct explanation of the statement
B. Both statement and reason are true but the reason is not the correct explanation of the statement
C. Statement is true but the reason is false
D. Both statement and reason are false
Answer» B. Both statement and reason are true but the reason is not the correct explanation of the statement
Discussion
9.

Statement: Ocean waves hitting a beach are always found to be nearly normal to the shore.
Reason: Once waves hitting a beach are assumed to be plane waves.

A. Both statement and reason are true and the reason is the correct explanation of the statement
B. Both statement and reason are true but the reason is not the correct explanation of the statement
C. Statement is true but the reason is false
D. Both statement and reason are false
Answer» B. Both statement and reason are true but the reason is not the correct explanation of the statement
Discussion