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Physics · 2023 · 1 mark
CBSE 2023 · Region 1 · Set 1 · Q17
Assertion (A): The phase difference between any two points on a wavefront is zero. Reason (R): All points on a wavefront are at the same distance…
Assertion (A) : The phase difference between any two points on a wavefront is zero.
Reason (R) : All points on a wavefront are at the same distance from the source and thus oscillate in the same phase.
Official answer
(A)
Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
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CBSE Class 12 Physics past-paper question from the 2023 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.