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A source of sound and a detector are moving along the same line with same speed

A source of sound and a detector are moving along the same line with same speed

Options

(a) Frequency registered by the detector is same as frequency of source
(b) Frequency registered by the detector is same as frequency of source if source is ahead
(c) Frequency registered by the detector is same as frequency of source if detector is ahead
(d) No sound is received by the detector

Correct Answer:

Frequency registered by the detector is same as frequency of source

Explanation:

No explanation available. Be the first to write the explanation for this question by commenting below.

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