MHT CET · Physics · Waves and Sound
At what speed should a source of sound move so that the observer finds the apparent frequency equal to half the original frequency?
- A \(\frac{\mathrm{V}}{2}\)
- B 2 V
- C \(\frac{\mathrm{V}}{4}\)
- D V
Answer & Solution
Correct Answer
(D) V
Step-by-step Solution
Detailed explanation
\(f' = f \left( \frac{V}{V + v_s} \right)\) \(\frac{f}{2} = f \left( \frac{V}{V + v_s} \right)\)
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