Velocity of sound waves in air is 330 m/sFor aparticular sound wave in air - a path difference of 40 cmis equivalent to phase difference of 1.6 πThe frequencyof this wave is [1990]

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Velocity of sound waves in air is 330 m/sFor aparticular sound wave in air - a path difference of 40 cmis equivalent to phase difference of 1.6 πThe frequencyof this wave is [1990]






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