a sound wave of frequency 500 hz travels from air into water. the speed of sound in air is 330 m s-1 and in water 1490 m s-1. what is the wavelength of the wave in a)air; b)water
The frequency stays the same, but, since
wave speed = (wavelength)*(frequency),
a) wavelength in air = V/f = 330/500
= 0.66 m
b) wavelength in water = 1490/500 = ?
thanks but actually i figured it out by myself!
What is the answer?
To find the wavelength of a sound wave, we can use the formula:
wavelength = speed / frequency
a) To find the wavelength of the sound wave in air, we'll use the speed of sound in air (330 m/s) and the frequency (500 Hz).
wavelength in air = speed of sound in air / frequency
wavelength in air = 330 m/s / 500 Hz
Now, let's calculate it:
wavelength in air = 0.66 meters
Therefore, the wavelength of the sound wave in air is 0.66 meters.
b) To find the wavelength of the sound wave in water, we'll use the speed of sound in water (1490 m/s) and the same frequency (500 Hz).
wavelength in water = speed of sound in water / frequency
wavelength in water = 1490 m/s / 500 Hz
Now, let's calculate it:
wavelength in water = 2.98 meters
Therefore, the wavelength of the sound wave in water is 2.98 meters.