If the pressure amplitude in a sound wave is tripled, then the inte...

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If the pressure amplitude in a sound wave is tripled, then the intensity of sound is increased by a factor of
\( \mathrm{P} \)
[CPMT 1992; JIPMER 2000]
(a) 9
(b) 3
(c) 6
(d) \( \sqrt{3} \)
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