Answers

2016-03-20T12:36:18+05:30
Velocity=1200m/s
wave length= 1.25km= 1.25*1000=1250m
velocity= wave length/time period
=> time period= wavelength / velocity
=1250/1200 s
frequency= 1/time period
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i didn't understand
i didn't understand.
i didn't understand
i didn't understand
i didn't understand.
2016-03-22T14:20:31+05:30
Using ,

v = f × wavelength

= f = v / wavelength

= f = 1200 / 1.25 × 1000

= f = 0.96HZ
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