A sound wave passes a point of observation. At this point, the time interval between two

Ujjwal Kumar Sen

A sound wave passes a point of observation. At this point, the time interval between two successive crests .2 S. Which of the following statements about the wave is correct?
(A) The wavelength is .02 m
(B) The wavelength is 50 m
(C) The frequency of 50 Hz
(D) The velocity of propagation is 50 m/s
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Vivek Chauhan answered
    Vivek Chauhan

    I think frequency is 5 Hz. As 0.2 sec is mentioned it may be 0.02 sec

    Vivek Chauhan answered
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