Velocity of sound in air is 340 m/s. Sound waves of wavelength 0.01 m – InterviewSolution

1.

Velocity of sound in air is 340 m/s. Sound waves of wavelength 0.01 m. from a vibrating body reach your ear through air. Will you be able to hear the sound? Justify your answer.

Answer»

V = 340 m/s

λ = 0.01 m

v = u λ

f = V/λ

f = 340/0.01

= 34000 Hz > 20,000 Hz

Human beings cannot hear these sounds.

Audible frequency range is 20 Hz to 20000 Hz

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