A plane sound wave in air at 20°C, with wavelength 0.645 m, is incident on a smooth surface of water at 25°C, at an angle of incidence of 3.65°. How do you determine the angle of refraction for the sound wave and the wavelength of the sound in water?
1 Answer
Angle of refraction
Wavelength in water
Explanation:
In air at
In fresh water at
Using the following relation between angle of incidence
- For calculating angle of refraction the above equation between angle and velocity becomes
2. To calculate the wavelength in water
Inserting the values