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)gtmu_(1)gtmu_(3)`. A wide, parallel beam of light is incident on the lens from the left. The lens will give rise to

Options

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

Answer

D

Explanation

As `mu_(2) gt mu_(1)`, the upper half of the lens of will become diverging. And `mu_(1) gt mu_(3)`, the lower half of the lens will become converging.