JEE · NEET Previous Year Question
With what velocity should an observer approach a stationary sound source so that the apparent frequency of sound should appear double the actual frequency? ( is velocity of sound).
Topic: JEE PYQ
Answer: B. Full step-by-step solution below.
- A
- B
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Correct answer: B
Solution
(b)For the observed frequency change due to Doppler effect.
will be if velocity of the observer is equal to the velocity of sound.
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