question_answer

Assertion             :       Within a glass slab, a double convex air bubble is formed. This air bubble behaves like a converging lens. Reason                 :   Refractive index of air is more than the refractive index of glass.

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: D

Solution :

                   The air bubble would behave as a diverging lens, because refractive index of air is less than refractive index of glass. However, the geometrical shape of the air bubble shall resemble a double convex lens.