Physics-Huygens Principle

NEET Physics Huygens Principle MCQ Question

Type: MCQ-conceptual-Easy-Class 12

Which combinations accurately describe Huygens Principle?

A

A wavefront is a surface of constant phase, and each point on it acts as a source of secondary wavelets.

B

The speed of the wavefront is irrelevant to the direction of energy propagation.

C

Secondary wavelets propagate in all directions equally from each point on the wavefront.

D

The new wavefront can be determined by drawing tangents to the secondary wavelets from the original wavefront.

Correct Answer

Option A

Detailed Explanation

According to Huygens Principle, a wavefront is defined as a surface of constant phase, and each point on it indeed acts as a source of secondary wavelets. The energy of the wave travels in a direction perpendicular to the wavefront, which is not captured by options B and C.

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