When a sound wave travels from one medium to another, the quantity that remains unchanged is

Question

When a sound wave travels from one medium to another, the quantity that remains unchanged is (A) speed (B) amplitude (C) frequency (D) wacelength

Tardigrade Admin · Accepted Answer

When a particle moves from one medium to other its amplitude increases on decreases. The velocity depends on the nature of medium, so velocity changes. Since velocity changes, wavelength also changes. But the frequency, which is the number of cycles per second remains same.

Q. When a sound wave travels from one medium to another, the quantity that remains unchanged is

speed

amplitude

frequency

wacelength

When a particle moves from one medium to other its amplitude increases on decreases. The velocity depends on the nature of medium, so velocity changes. Since velocity changes, wavelength also changes. But the frequency, which is the number of cycles per second remains same.