MCQOPTIONS
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| 1. |
If a plane wavefront is incident on a convex lens then the emergent wavefront will be _______________ |
| A. | spherical with centre of the curvature of the surface |
| B. | conical with focus |
| C. | spherical with focus |
| D. | conical with centre of the curvature of the surface |
| Answer» D. conical with centre of the curvature of the surface | |