Question

A plane wave of sound traveling in air is incident upon a plane water surface. The angle of incidence is ${60}^o$. Assuming Snell's law to be valid for sound, it follows that the sound wave will be refracted into the water away from the normal.

• A. True
• B. False

Answer 1

The correct option is A True

If Snell's law is applicable to sound waves, with given just the right angle of incidence and velocity, it can refract into the water away from the normal.