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प्रश्न
Two waves of the same pitch have amplitudes in the ratio 1 : 3. What will be the ratio of their :
(i) intensities and
(ii) frequencies
उत्तर
(i) Same pitch
`(A_1)/(A_1) = 1 /3`
Intensities I ∝ A2
`therefore I_1/I_2 = 1/9`
(ii) Pitch is same ⇒ frequency is same.
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