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NEET UG PHYSICS MCQ: WAVES

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An observer moves towards a stationary source of sound with a velocity one-fourth of the velocity of sound. What is the percentage increases in the apparent frequency?
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Correct option: A
25%25\%
Option A (25%25\%) is correct because the apparent frequency increases by 25% when the observer moves towards the stationary source at one-fourth the speed of sound.

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