Question

sound travels 40m during 20vibration it's wavelength is

Answer 1

wavelength of 20 vibrations = 40 m
wavelength of 1 vibration = 40/20 = 2 m.

Answer 2

Given:

Distance traveled by sound during 20 vibrations=40 m

To find:

Wavelength of sound

Solution:

Wavelength: It is defines as the distance traveled by wave in 1 vibration

Distance traveled by sound during 20 vibrations=40 m

Distance traveled by sound during 1 vibration=$\frac{40}{20}$m

Distance traveled by sound during 1 vibration=2 m

By definition of wavelength

Therefore, the wavelength of sound=2 m

Hence, the wavelength of sound=2 m