Question
Physics Question on Ray optics and optical instruments
The radius of curvature of a thin planoconvex lens is 10 cm and the refractive index is 1.5. If the plane surface is silvered then it behaves like a concave mirror of focal length
A
20 cm
B
15 cm
C
10 cm
D
5 cm
Answer
10 cm
Explanation
Solution
Answer (c) 10 cm