1.

A person has a hearing range from 20 Hz to20 kHz. The speed of sound in air is344 ms–1. The typical wavelengths of soundwave in air corresponding to these twofrequencies are respectivelypl answer fst

Answer»

ANSWER:

For a sound wave,

Speed = WAVELENGTH x Frequency

v = λ x f

Speed of sound in air = 344 m/s (Given)

(i) For, f = 20 Hz

λ1= v/f = 344/20 = 17.2 m

(ii) For, f= 20000 Hz

λ2= v/f = 344/20000 = 0.172 m

Hence, for humans, the wavelength range for HEARING is 0.0172 m to 17.2 m.

Hope this is HELPFUL for you.



Discussion

No Comment Found

Related InterviewSolutions