Question

Choose the correct ray diagram of a thin equi-convex lens which is cut as shown in the figure.

• A.
• B.
• C.
• D.

Answer 1

Answer: (C)

For upper segment,
$\frac{1}{f}=\frac{\mu -1}{R}$
For lower segment,
$\frac{1}{f}=\frac{2\left(\mu -1\right)}{R}$