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 | 6th 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 | 6th Oct, 2020, 03:12: PM