MCQOPTIONS
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| 1. |
An equiconvex lens has a power of 5 diopter. If it is made of glass of refractive index 1.5 then the radius of the curvature of each surface will be |
| A. | 20 cm |
| B. | 10 cm |
| C. | 5 cm |
| D. | zero |
| Answer» B. 10 cm | |