Optics Question 635
Question: A biconvex lens with equal radii curvature has refractive index 1.6 and focal length 10 cm. Its radius of curvature will be
[MP PET 2003]
Options:
A) 20 cm
B) 16 cm
C) 10 cm
D) 12 cm
Show Answer
Answer:
Correct Answer: D
Solution:
$ f=\frac{R}{2(\mu -1)}\Rightarrow 10=\frac{R}{2(1.6-1)}\Rightarrow R=12 $ $ cm $
