question_answer

Assertion             :       Velocity of particles, while crossing mean position (in stationary waves) varies from maximum at antinodes to zero at nodes. Reason                 :       Amplitude of vibration at antinodes is maximum and at nodes, the amplitude is zero, And all particles between two successive nodes cross the mean position together.

A)             If both assertion and reason are true and the reason is the correct explanation of the assertion.

B)             If both assertion and reason are true but reason is not the correct explanation of the assertion.

C)             If assertion is true but reason is false.

D)             If the assertion and reason both are false.

E)             If assertion is false but reason is true.

Correct Answer: A

Solution :

                   Stationary wave A node is a place of zero amplitude and an antinode is a place of maximum amplitude.