CBSE 2025 · Region 2 · Set 1 · Q15 · 1 mark
Assertion (A) : Out of Infrared and radio waves, the radio waves show more diffraction effect.
Reason (R) : Radio waves have greater frequency than infrared waves.
Official answer
From CBSE’s own marking scheme for this paper.
(C)
If Assertion (A) is true but Reason (R) is false.
Wave OpticsDiffractionAnalyseassertion_reasonmedium
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CBSE Class 12 Physics past-paper question from the 2025board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.