Q20
The band labelled as UV - C which is lethal to microorganisms is
A.
0.29 - 0.32 μm
B.
0.2 - 0.29 μm
AnswerC.
0.17 - 0.2 μm
D.
0.07 - 0.21 μm
Answer: Option B
Solution
Answer: Option B
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