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  4. Two harmonic waves travelling in the same medium have frequency in the ratio 1: 2 and intensity in the ratio 1: 36. Their amplitude ratio is:

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Q. Two harmonic waves travelling in the same medium have frequency in the ratio $1: 2$ and intensity in the ratio $1: 36$. Their amplitude ratio is:

Waves

Solution:

As we know that intensity of a wave is directly proportional to square of frequency as well as square of amplitude.