The power of a biconvex lens is 10 dioptre and the radius of curvature of each surface is 10 cm. Then the refractive index of the material of the lens is |
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a) |
3/2 |
b) |
4/3 |
c) |
9/8 |
d) |
5/3 |
The power of a biconvex lens is 10 dioptre and the radius of curvature of each surface is 10 cm. Then the refractive index of the material of the lens is |
|||||||
a) |
3/2 |
b) |
4/3 |
c) |
9/8 |
d) |
5/3 |
(a) Power of lens, According to lens maker’s formula For biconvex lens |