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CBSE Class 10 Answered

The radius of curvature of two faces of double convex lens are 10cm,15cm and its focal length is 12cm. Then determine refractive index of lens
Asked by abdibnzubair | 06 Oct, 2020, 12:52: PM
Expert Answer
A s space p e r space t h e space l e n s space m a k e r s space f o r m u l a
1 over f equals open parentheses mu minus 1 close parentheses open parentheses 1 over R subscript 1 minus 1 over R subscript 2 close parentheses
1 over 12 equals open parentheses mu minus 1 close parentheses open parentheses 1 over 10 minus fraction numerator 1 over denominator negative 15 end fraction close parentheses
1 over 12 equals open parentheses mu minus 1 close parentheses open parentheses 5 over 30 close parentheses
mu equals 3 over 2
Answered by Utkarsh Lokhande | 06 Oct, 2020, 03:12: PM
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