Question

State and explain any two requisites of a medium for the propagation of sound.​

Answer 1

Answer:

The medium for propagation of sound should be:

Elastic so that particles come back to the original position.

Should have inertia so that particles can store mechanical energy.

Medium should be frictionless so that there is no loss of energy.

Answer 2

Explanation:

air and steel

The sound travel the fastest in steel.

The speed of sound in air is fifteenth time slower than steel.In steel, the particles are closely packed but In air the particles are not closely packed.