A convex lens of focal legnth `0.2 m` and made of glass `(mu = 1.50)` is immersed in water `(mu = 1.33)`. Find the change in the focal length of the lens.

A convex lens of focal length 0.2 m and made of glass 9mu=1.50) is immersed in water 9mu=1.33) .Find the chajnge in the focal length of the lens.

A convex lens of focal length 20 cm and made of glass (mu = 1.5) is immersed in water of mu = 1.33 Calculate change in focal length of the lens.

A convex lens focal lenghts 30 cm made of glass of refractive index 1.5 is immersed in water having refrctive 1.33 . The change in the focal length of lens is

A convex lens focal lenghts 30 cm made of glass of refractive index 1.5 is immersed in water having refrctive 1.33 . The change in the focal length of lens is

A convex lens of focal length 0.24 m and of refractive index 1.5 is completely immersed in water of refractive 1.33. Find the changes in the focal length of the lens.

A convex lens of focal length 20 cm made of glass of refractive index 1.5 is immersed in water having refractive index 1.33 . The change in the focal length of lens is

A convex lens of focal length 0.24 m and of refractive index 1.5 is completely immersed in water of refractive index 1.33. Find the change in focal length of the lens.