Question

a longitudinal wave travels at a speed of 0.3 m s-1 and the frequency of wave is 20 hertz. find the separation between the two consecutive compressions

Answer 1

Answer: 15mm

Explanation:

Since,, the distance between two successive compression is known as wavelength.

Now we know that.

c=¥v

Where

•c=Speed of light

•¥=wavelength

•v=frequency

So, ¥=c/v

¥=0.3/20=0.015m=15mm

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