In a sound wave in air, the adjacent rarefactions and compressions are separated by a...

JAMB 1989

In a sound wave in air, the adjacent rarefactions and compressions are separated by a distance of 17cm. If the velocity of the sound wave is 340ms^-1. Determine the frequency

A. 10Hz
B. 20Hz
C. 1000Hz
D. 5780Hz

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Correct Answer: Option C

Explanation

\(\lambda\) = 2L

2 x 17 = 34cm

F = \(\frac{V}{\lambda}\)

= \(\frac{340}{34 \times 10^{-2}}\)

= 1000Hz

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In a sound wave in air, the adjacent rarefactions and compressions are separated by a...

Correct Answer: Option C

Explanation

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