Question

Which statement correctly compares sound and light waves?

Both light and sound waves need matter to carry energy from one place to another.

Neither light nor sound waves need matter to carry energy from one place to another.

Light waves carry energy parallel to the motion of the wave, while sound waves carry energy perpendicular to it.

Sound waves carry energy parallel to the motion of the wave, while light waves carry energy perpendicular to it.

Answer 1

Answer : The correct option is, Sound waves carry energy parallel to the motion of the wave, while light waves carry energy perpendicular to it.

Explanation :

Sound waves are considered as longitudinal waves.

Light waves are considered as transverse waves.

Longitudinal waves are the waves in which the displacement of the particles is parallel to the motion of the waves.

Transverse waves are the waves in which the displacement of the particles is perpendicular to the motion of the waves.

Hence, the sound waves carry energy parallel to the motion of the wave, while light waves carry energy perpendicular to it.