Question

A convex lens is made of a material having refractive index
\[1 \cdot 2\] Both the surfaces of the lens are convex. If it is dipped into water (μ = 1.33), it will behave like 

Options

•  a convergent lens

• a divergent lens

• a rectangular slab

•  a prism.

Answer 1

 a divergent lens
Since the refractive index of lens is less than that of of water and both the sides are convex, it will act like a normal diverging lens (though its focal length will change to negative).