Waves of displacement amplitude A and angular frequency omega travel in air with same velocity. Whic

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14.Waves and Sound

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Waves of displacement amplitude $A$ and angular frequency $\omega $ travel in air with the same velocity. Which of the following waves has the highest intensity

A

$A = 10 \times 1^{-4}\,m,\, \omega = 500\,s^{-1}$

B

$A = 2 \times 10^{-4}\,m,\, \omega = 2000\,s^{-1}$

C

$A = 2 \times 10^{-4}\,m,\,\omega = 115\,s^{-1}$

D

$A = 20 \times 10^{-4}\,m,\,\omega = 200\,s^{-1}$

Solution

$I \propto n^2a^2$

Standard 11

Physics

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