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An underwater sonar source operating at ...

An underwater sonar source operating at a frequency of 60 kHz directs its beam towards the surface. If velocity of sound in air is 330 m/s, wavelength and frequency of the waves in air are :-

A

5.5 mm,60 kHz

B

3.30 m,60 kHz

C

5.5 mm, 30 kHz

D

5.5 mm,80 kHz

Text Solution

Verified by Experts

The correct Answer is:
A
`f_("air")=f_("water")rArr f_("air")=(v_("air"))/(v_("air"))=(330)/(60xx10^(3))=5.5`mm
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ALLEN -WAVES AND OSCILLATIONS-Part-1(Exercise-01)
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