| Assertion (A): A double convex air bubble is formed within a glass slab. The air bubble behaves like a converging lens. |
| Reason (R): Refractive index of glass is more that the refractive index of air. |
A) Both A and R are true and R is the correct explanation of A
B) Both A and R are true but R is NOT the correct explanation of A
C) A is true but R is false
D) A is false and R is True
Correct Answer: D
Solution :
| Option [d] is correct |
| Explanation: Speed of light is slower in glass compared to that in air. Hence the refractive index of glass is more than that of air. So the reason is true. |
| When a double convex air bubble is formed within a glass slab, the refractive index of the medium of the bubble is less than the refractive index of the surrounding medium. Hence the lens will not behave like a converging lens. |
| It will behave like a diverging lens. So, the assertion is false. |
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