CBSE Class 12-science Answered
A convex lens of focal length 20cm and made of glass of refractive index 1.5 is immersed in water of reffractive index 1.33 calculate change in focal length of the lens
Asked by Sandeep Yadav | 06 Dec, 2014, 11:09: PM
Expert Answer
Answered by Jyothi Nair | 07 Dec, 2014, 08:50: PM
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