Assertion : In the case of a stationary wave, a person hear a loud sound at the nodes as compared to the particles of the medium vibrate in phases.

Options

A. If both assertion and reason are true and reason is the correct expleanation of assertion.
B. If both assertion and reason are true and reason is not the correct expleanation of assertion.
C. If assertion is true but reason is false.
D. If assertion and reason both are false.

Answer

C

Explanation

The person will hear the loud sound at nodes than at antinodes. We know that as antinodes the displacement is maximum and pressure change is minimum while at nodes the displacement is zero and pressure change is maximum. The sound is hear due to variation of pressure. Also in stationary waves particles in two different segment vibrates in opposite phase.