Question

1. Waves are means of transferring energy from one point to another. Distinguish between longitudinal and transverse waves.

2. What is a plane progressive wave? Arrive at an expression for the displacement of a particle on the path of the wave, advancing in the positive x-direction.

3. The velocity of sound is greater in solids than in gases. Explain.

Answer 1

1.

Longitudinal wave	Transverse wave
1. Can’t be polarized	1. Can be polarized
2. Direction of propagation is parallel to the direction of vibration of particles.	2. Direction of propagation is perpendicular to the direction of vibration of particles.

2. Out of syllabus

3. Solids are highly elastic as compared to liquids and gases.