The refractive index of the material of a double convex lens is 1.5 and its focal length is 5 cm. If the radius of curvatures of faces are equal then the value of its radius of curvature is |
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(a) |
5 cm |
(b) |
6.5 cm |
(c) |
8 cm |
(d) |
9.5 cm |

The refractive index of the material of a double convex lens is 1.5 and its focal length is 5 cm. If the radius of curvatures of faces are equal then the value of its radius of curvature is |
|||||||

(a) |
5 cm |
(b) |
6.5 cm |
(c) |
8 cm |
(d) |
9.5 cm |

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