Physics Light - Reflection and Refraction CBSE Board 2026 Hard
When a convergent beam of light is incident on a convex mirror, the reflected rays appear to be coming from a…
When a convergent beam of light is incident on a convex mirror, the reflected rays appear to be coming from a point 20 cm behind the mirror and retrace their path. The focal length of the mirror is
- (a)20 cm
- (b)10 cm
- (c)40 cm
- (d)30 cm
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