Question

Assertion (A): Sound waves necessarily require a medium for their propagation.

Reason (R): The transfer of energy by the waves is through the vibrations of the medium particles about their mean positions.

Options

• Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion.

• Both Assertion (A) and Reason (R) are true but Reason (R) is not the correct explanation of Assertion.

• Assertion (A) is false, but Reason (R) is true.

• Assertion (A) is true, but Reason (R) is false.

Answer 1

Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion.

Explanation:

Sound waves are mechanical waves, so they need a medium to travel. They transfer energy through vibrations of the particles of that medium.