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1st Year Physics Chapter 8 MCQs

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To get 1st Year Physics Chapter 8 MCQs with Answers Waves, you are here in the right place. The first concept is about waves that carry energy that is carried out by a disturbance from a source. There are two types of waves i.e. Transverse and Longitudinal. Then there are Periodic Waves that have Transverse and Longitudinal Periodic waves. The most important topic is the speech d of sound in the air. Some affect effect the speech d of sound in the gas. In the inference and principle of superposition are some important concepts. Waves also show reflection. After this, there is the concept of Stationary waves. The last topic is Doppler’s very important effect. So, let’s check the important MCQs of Physics Chapter 8 given below and prepare for the entrance test.

1st Year Physics Chapter 8 MCQs with Answers Waves

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Physics Chapter 8

1 / 20

A certain stretched string produces a frequency ‘f.’ if the same product of frequency is twice as high, the tension of the string should be

2 / 20

If a person moves away from a stationary source of sound with a speed half of the speed of sound, the frequency of sound waves heard by a person will be

3 / 20

If an observer moves toward a source and the source moves away with the same velocity then the apparent frequency of light waves

4 / 20

If the tension in the vibrating string is increased by four times, then velocity in it

5 / 20

Only odd harmonics are present in

6 / 20

If the wavelength of light coming from a galaxy shift towards the red end of the spectrum, then the galaxy is

7 / 20

A stretched string of length 1 m vibrates in five segments. The wavelength of the wave in the string is

8 / 20

A stretched string of length 1 m vibrates with a fundamental frequency of 1 Hz. The velocity of the wave is

9 / 20

The 4th mode frequency of a stationary wave in a string fixed at two ends of an open pipe is (where f1 is fundamental frequency)

10 / 20

If the radar waves are reflected by an Airplane and the wavelength of reflected waves decreases then the Airplane is

11 / 20

The ratio of third mode frequencies for the closed pipe to open pipe is

12 / 20

The principle of superposition states that the total displacement due to waves is equal to ____________ of the displacement due to those waves individually.

13 / 20

The energy transmitted per second per unit area held perpendicular direction of propagation of waves is called ____________ of sound.

14 / 20

A stationary wave has a frequency of 165 Hz (speed of sound in air = 330) distance between two consecutive nodes is

15 / 20

The linear distance between any two nearest points of a medium vibrating in phase is

16 / 20

An observer is moving towards a stationary source with velocity v/3. The apparent frequency would be if v is the speed of sound and f is the original frequency

17 / 20

Doppler’s effect is applicable to:

18 / 20

The pitch of the sound of an approaching locomotive appears to be

19 / 20

If the star is moving away from the earth; the wavelength of the waves emitted from the star has a

20 / 20

Star, moving towards earth show a:

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