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Assertion: By roughening the surface of a glass sheet its transparency can be reduced. Reason: Glass sheet with rough surface absorbs more light.A. (a) If both the assertion and reason are true and reason explains the assertion assertion.B. (b) If both assertion and reason are true but reason does not explain the assertionC. (c) If assertion is true but reason is false.D. (d) If assertion is false but reason is true. |
Answer» Correct Answer - C When glass surface is made rough then the light falling on it is scattered in different directions reducing its transparency. Also since rough surfaces scatter light more, it is absorbed less. |
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