MHT CET 2026 Physics question
When the observer moves towards a stationary source with velocity 'V', the apparent frequency of the emitted note is 'F'. When the observer moves away from the source with velocity 'V' the apparent frequency is 'F'. If 'V' is the speed of sound in air and F/F = 2 then V/V =
Answer: (B)
Solution
For a stationary source and a moving observer, the apparent frequency is , with when the observer approaches and when the observer recedes. Thus and . Hence
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