CBSE Class 9 Answered
PROBLEM
Asked by | 19 Jul, 2009, 07:38: AM
Expert Answer
wavelength = 100 m
wave velocity = 20 m/s
frequency = wave velocity / wavelength
= 20 / 100
= 0.2 sec-1
Answered by | 19 Jul, 2009, 11:45: AM
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