Physics-
General
Easy
Question
In the given figure a parallel beam of light is incident on the upper part of a prism of angle 
and R.I. 3/2. The light coming out of the prism falls on a concave mirror of radius of curvature 20 cm. The distance of the point (where the rays are focused after reflection from the mirror) from the principal axis is: [use 
= 3.14]
- 9 cm
- 1.5 7 mm
- 3.14 mm
- none of these
The correct answer is: 1.5 7 mm
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