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,
$$\lambda$$ = (c / f)
$$\lambda$$ = 420 / 820
$$\lambda$$ = 0.52(approx)

Hence, option A is the correct answer.

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