A convex lens of glass (`mu` = 1.5) is immersed in water. Compared to its power in air, its power in water-

A convex lens of glass has power P in air. If it is immersed in water its power will be

A convex lens, made of glass, is immersed in water. As a result, its focal length will:

A convex lens of power P is immersed in water. How will its power change ?

a lens of glass is immersed in water. How is power of lens affected ?

The focal length of a convex lens of glass (mu = 1.5) in air is 30 cm. Find its focal length when the lens is placed in water (mu = 4//3) .

Assertion : If a convex lens of glass is immersed in water its power decreases. Reason : In water it behaves as a convex lens.

Assertion : If a convex lens of glass is immersed in water its power decreases. Reason : In water it behaves as a concave lens.