Question

Assertion (A): During wave motion, no matter is transferred but only energy gets transferred.

Reason (R): Wave motion can be produced only in a medium having elasticity and inertia.

Options

• If both Assertion and Reason are true and the Reason is correct explanation of the Assertion.

• If both Assertion and Reason are true, but Reason is not correct explanation of the Assertion.

• If Assertion is true, but the Reason is false.

• If Assertion is false, but the Reason is true.

Answer 1

If both Assertion and Reason are true, but Reason is not correct explanation of the Assertion.

Explanation:

Assertion (A) is true. In wave motion, particles of the medium only vibrate about their mean positions. Thus, energy is transferred from one point to another without any net transfer of matter.

Reason (R) is true. For mechanical wave motion, the medium must possess elasticity and inertia so that the disturbance can propagate through it.

However, the Reason only states the conditions required for mechanical wave propagation; it does not explain why matter is not transferred.

Therefore, both A and R are true, but R is not the correct explanation of A.