A sinusoidal wave `y_(1) = a sin ( omega t - kx) ` is reflected from a rigid support and superpose with the incident wave `y_(1)` . Assume the rigid support to be at `x = 0`.

Options

A. Stationary wave are obtained with antinode at the rigid support
B. Stationarywave are obtained with node at the rigid support
C. Stationary waves are obtained with intensity varying periodically with distance
D. Stationary wave are obtained with intensity varying periodicallywith time

Answer

B, C

Explanation

As the support is rigid, the wave is reflected in opposite phase hence at the support destructive interference takes place and node will be obtained. Due to nodes and antinodes at different positions, intensity of wave varies periodically with distance.