MHT CET · Physics · Waves and Sound
A musical instrument 'P' produce sound waves of frequency ' n ' and amplitude 'A'. Another musical instrument 'Q' produces sound waves of frequency ' \(\frac{n}{4}\) '. The waves produced by ' \(P\) ' and ' \(Q\) ' have equal energies. If the amplitude of waves produced by ' \(P\) ' is ' \(A_P\) ', the amplitude of waves produced by 'Q' will be
- A \(2 \mathrm{~A}_p\)
- B \(4 \mathrm{~A}_p\)
- C \(6 A_p\)
- D \(9 A_p\)
Answer & Solution
Correct Answer
(B) \(4 \mathrm{~A}_p\)
Step-by-step Solution
Detailed explanation
\( E \propto A^2 n^2 \) \( E_P = E_Q \)
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