Physics
The ratio of amplitude of two waves is 3 : 4. What is the ratio of their :
(i) loudness?
(ii) frequencies?
Sound
ICSE 2016
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Answer
Given, a1 : a2 = 3 : 4
(i) Since, loudness ∝ (amplitude)2
Therefore,
(ii) The frequency of sound does not depend on it's amplitude, so the ratio of frequency f1 : f2 = 1 : 1
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