Question

An object is placed infront of a convex mirror at a distance of 50 cm. A plane mirror is introduced covering the lower half of the convex mirror. If the distance between the object and plane mirror is 30 cm, it is found that there is no parallax between the images formed by two mirrors. Radius of curvature of mirror will be-

• A. 12.5 cm
• B. 25 cm
• C. $\frac { 50 } { 3 }$cm
• D. 18 cm

Answer 1

Answer: (B)

25 cm

Answer 2

Both image by plane mirror and convex mirror coinciding each other