Question

Which of the following is/are required for the propagation of sound?

• A. The medium must be elastic for sound to propagate through it.
• B. The medium must have inertia for sound to propagate through it.
• C. The medium must be a gas for sound to propagate through it.
• D. The temperature of the medium must be close to room temperature for sound to propagate through it.

Answer 1

Answer: (A), (B)

The correct options are
A

The medium must be elastic for sound to propagate through it.

B

The medium must have inertia for sound to propagate through it.

Required properties of the medium through which sound propagates are:-

The medium through which sound propagates much be elastic so that particles of the medium can come back to their initial position after displacement on either side.

The medium must have inertia so that particles can store mechanical energy.

Sound can propagate through solids liquids and gases. Also, the temperature of the medium does not determine whether sound propagates through it or not.