Question

A double convex lens, lens made of a material of refractive index ${\mu }_1$ is placed inside two liquids or refractive indices ${\mu }_2$ and ${\mu }_3$, as shown ${\mu }_2>{\mu }_1>{\mu }_3$. A wide, parallel beam of light is incident on the lens from the left.

• A. A single convergent beam
• B. Two different convergent beams
• C. Two different divergent beams
• D. A convergent and a divergent beam

Answer 1

The correct option is D A convergent and a divergent beam

As ${\mu }_2>{\mu }_1$, the upper half of the lens will become diverging.
As ${\mu }_1>{\mu }_3$, the lower half of the lens will become converging