MCQOPTIONS
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MCQOPTIONS
| 1. |
A convex lens with a focal length of 0.5 m and a concave lens with a focal length of 1 m are joined. The power of the resultant lens will be - |
| A. | 1 डायोप्टर |
| B. | - 1 डायोप्टर |
| C. | 0.5 डायोप्टर |
| D. | - 0.5 डायोप्टर |
| Answer» B. - 1 डायोप्टर | |