Question

Huygens principle of secondary wavelets may be used to

• A. find the velocity of light in vacuum
• B. explain the particle behaviour of light
• C. find the new position of a wavefront
• D. explain photoelectric effect

Answer 1

Answer: (C)

find the new position of a wavefront

Answer 2

Huygens' principle states that every point on a wavefrontmay be considered a source of secondary waves. The word interferenceis used to describe the superposition of two waves, whereas diffractionis interference produced by several waves. By this principle, we can find the exact position of the next ripple/wavefront that is to be produced.

Therefore, Option C) is the correct answer.

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