GyanGramWhat is the role of ultraviolet (UV) radiation in the water purification systems? 1. It inactivates /kills th…
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What is the role of ultraviolet (UV) radiation in the water purification systems?
1. It inactivates /kills the harmful microorganisms in water.
2. It removes all the undesirable odours from the water.
3. It quickens the sedimentation of solid particles, removes turbidity and improves the clarity of the water.
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• Correct Answer: A
• UV radiation inactivates microorganisms by damaging their DNA/RNA, preventing reproduction.
• It does not remove odours or turbidity; suspended particles can shield microbes and reduce UV efficacy.
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