Question

4) The frequency of sound
wave is 20 kHz and wavelength
is 0.012 m. The speed of sound
will be
a)340 m/s
b)280 m/s
c)380 m/s
d) 240 m/s​

Answer 1

Answer:

D option is a correct one that is 240 metre per second....

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Answer 2

Answer:

d)240m/s

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