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Question 64
What is the wave length of a sound wave whose frequency is 820 Hz and speed is 420 m/s in a given medium?
Solution
Given,
Frequency(f) = 820 hz, Speed of the wave(c) = 420 m/s and we need to find wavelength($$\lambda$$)
We know that,Â
$$\lambda$$ = (c / f)
$$\lambda$$ = 420 / 820
$$\lambda$$ = 0.52(approx)
Hence, option A is the correct answer.
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