CBSE 2026 · Region 3 · Set 1 · Q5 · 1 mark
The phase difference between the two superimposing waves that give rise to a bright spot in a Young's double-slit experiment is (n is an integer) :
Official answer
From CBSE’s own marking scheme for this paper.
(A)
$\displaystyle 2 \mathrm{n} \pi$
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CBSE Class 12 Physics past-paper question from the 2026board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.