ICSE Class 10 Physics 2020 Solved Paper
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Question : 18
Total: 67
A sound wave travelling in water has wavelength 0.4 m
Is this wave audible in air? (The speed of sound in water= 1400 ms − 1
Is this wave audible in air? (The speed of sound in water
Solution:
Given : λ = 0.4 m , v = 1400 ms − 1
We know,v = f λ
orf =
=
= 3500 Hz
Yes. Since the value off ( 20 Hz 20 , 000 Hz )
We know,
or
Yes. Since the value of
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