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Physics · 2023 · 1 mark
CBSE 2023 · Region 2 · Set 1 · Q18
Assertion (A): In Young's double slit experiment all fringes are of equal width. Reason (R): The fringe width depends upon wavelength of light ( λ )…
Assertion (A) : In Young's double slit experiment all fringes are of equal width.
Reason (R) : The fringe width depends upon wavelength of light ( $\displaystyle \lambda$ ) used, distance of screen from plane of slits (D) and slits separation (d).
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.