Which statement correctly compares sound and Electromagnetic waves?

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

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

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

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

Question

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Physics

17 May, 19:17

Which statement correctly compares sound and Electromagnetic waves?

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

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

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

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

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Answers (1)

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Gates · Answer 1

Answer: D

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

Explanation:

Sound is a longitudinal wave in which the displacement of the medium is in the same direction as, or the opposite direction to, the direction of propagation of the wave

While electromagnetic wave are transverse wave. A moving wave whose oscillations are perpendicular to the direction of the wave or path of propagation. So the correct answer is D. Sound waves carry energy parallel to the motion of the wave, while EM waves carry energy perpendicular to it