question_answer

Assertion             :       By roughening the surface of a glass sheet its transparency can be reduced. Reason                 :   Glass sheet with rough surface absorbs more light.      [AIIMS 2005]

A)             If both assertion and reason are true and the reason is the correct explanation of the assertion.

B)             If both assertion and reason are true but reason is not the correct explanation of the assertion.

C)             If assertion is true but reason is false.

D)             If the assertion and reason both are false.

E)             If assertion is false but reason is true.

Correct Answer: C

Solution :

                   When glass surface is made rough then the light falling on it is scattered in different direction due to which its transparency decreases.