CBSE 2023 · Region 3 · Set 1 · Q21 · 2 marks
State Huygens' principle. How did Huygens explain the absence of the backwave?Use Huygens' principle to show reflection/refraction of a plane wave by (i) concave mirror, and (ii) a convex lens.
State Huygens' principle. How did Huygens explain the absence of the backwave?
Use Huygens' principle to show reflection/refraction of a plane wave by (i) concave mirror, and (ii) a convex lens.
Marking-scheme solution
(a)
Statement: Each point of the wavefront is the source of secondary disturbance in all directions.
Wave OpticsHuygens PrincipleUnderstandvery_short_answermedium
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CBSE Class 12 Physics past-paper question from the 2023board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.