MCQOPTIONS
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MCQOPTIONS
| 1. |
A ray parallel to principal axis is incident at \[30{}^\circ \]from normal on concave mirror having radius of curvature R. The point on principal axis where rays are focused is Q such that PQ is |
| A. | \[\frac{R}{2}\] |
| B. | \[\frac{R}{\sqrt{3}}\] |
| C. | \[\frac{2\sqrt{R}-\sqrt{R}}{\sqrt{2}}\] |
| D. | \[R\left( 1-\frac{1}{\sqrt{3}} \right)\] |
| Answer» E. | |