Question

list at least 3 differences between light waves and sound waves?

Answer 1

Difference 1:
Light waves are electro-magnetic waves, wound waves are elastic or mechanical waves.
Difference 2:
Sound waves can not propagate in vacuum, light waves can travel in vacuum.
Difference 3:
Velocity of sound in air is 340 m/s and that of light is 3 × $10^{8}$ m/s.