2nd sum

Asked by lovemaan5500 | 7th Jan, 2019, 07:41: AM

Expert Answer:

Given wavelength λ = 3 cm
Wave speed v = 25.2/1.2 = 21 cms-1
From relation v = λ×f
Putting the values
f= 21/3 = 7Hz.

Answered by Ankit K | 7th Jan, 2019, 03:26: PM

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