Two waves of the same pitch have amplitudes in the ratio 1 : 3. what will be the ratio of their

(i) loudness,

(ii) pitch ?

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Solution

(i) Loudness is proportional to amplitude square
Ratio of loudness= 1/3square = 1:9
(ii) Frequency of the sound wave has no effect on amplitude.
so, ratios of frequency remains same that is 1:1

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