Question

What are the shortest and longest wave length of the sound that the human ears can hear? Speed of sound in air is 330m/s and the audible range of frequency is 20Hz to 20kHz.

Answer 1

Answer:

Given : Velocity of sound in air v=344 ms

−1

Wavelength of the sound waves λ=

ν

v

For ν

1

=20 Hz, λ

1

=

20

344

=17.2 m

For ν

2

=20 kHz, λ

2

=

20×1000

344

=1.72×10

−2

m

Answer 2

Answer:1.72×10^-2

Explanation: