CBSE Class 12 Physics 2014 Outside Delhi Set 1 Paper

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Question : 8
Total: 30
A biconvex lens made of a transparent material of refractive index 1.25 is immersed in water of refractive index 1.33 . Will the lens behave as a converging or a diverging lens? Give reason.
Solution:  
The biconvex lens will now behave as a diverging lens as the refractive index of water(1.33) is more than the refractive index of the material(1.25) of the lens.
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