MCQOPTIONS
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MCQOPTIONS
| 1. |
Two plano-convex lenses each of focal length 10 cm & refractive index \[\frac{3}{2}\] are placed as shown. In the space left, water \[\left( R.l=\frac{4}{3} \right)\] is filled. The whole arrangement is in air. The optical power of the system is (in diopters) |
| A. | 6.67 |
| B. | -6.67 |
| C. | 33.3 |
| D. | -33.3 |
| Answer» B. -6.67 | |