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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS
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Chapter 17 - Sound Waves
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WBJEE 2018
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Q 1
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EASY
WBJEE
IMPORTANT
Earn 100
The intensity of a sound appears to an observer to be periodic. Which of the following can be the cause of it?
(a)
The intensity of the source is periodic
(b)
The source is moving towards the observer
(c)
The observer is moving away from the source
(d)
The source is producing a sound composed of two nearby frequencies
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Important Questions on Sound Waves
EASY
WBJEE
IMPORTANT
EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS
>
Chapter 17 - Sound Waves
>
WBJEE 2018
>
Q 1
The intensity of a sound appears to an observer to be periodic. Which of the following can be the cause of it?
