Physics · 2025
JEE Main · 22 January 2025, Shift 1 · Q40
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion-(A): If Young's double slit…
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion-(A) : If Young's double slit experiment is performed in an optically denser medium than air, then the consecutive fringes come closer.
Reason-(R) : The speed of light reduces in an optically denser medium than air while its frequency does not change.
In the light of the above statements, choose the most appropriate answer from the options given below :
Official answer
From NTA’s final answer key for this paper.
(4)
Both (A) and (R) are true and (R) is the correct explanation of (A)
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JEE Main 2025 Physics question, with the answer from NTA’s final answer key. Where our answers come from.