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Physics · 2026 · 1 mark
CBSE 2026 · Region 1 · Set 2 · Q7
Electromagnetic waves used for purification of water are
Electromagnetic waves used for purification of water are
Official answer
(B)
Ultraviolet rays
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CBSE Class 12 Physics past-paper question from the 2026 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.