A converging lens is made up of material having refractive index 1.3 .If it is dipped in a liquid having refractive index 1.4 ,then it will behave like

A converging lens has a focal length of 20 cm in air. It is made of a material of refractive index 1.6 . If it is immersed in a liquid of refractive index 1.3 , what will be its new foacl length ?

A lens is made of flint glass (refractive index =1.5 ). When the lens is immersed in a liquid of refractive index 1.25 , the focal length:

A thin lens is made with as material having refractive index mu=1.5. both the sides are convex. It is dipped in water (mu=1.33) . It will behave like

A convex lens made up of glass of refractive index 1.5 is dippedin turn (i) in a medium of refractive index 1.65 (ii) in a medium of refractive index 1.33 Then Will it behave as converging or diverging lens in the two cases ?

A convex lens made up of glass of refractive index 1.5 is dippedin turn (i) in a medium of refractive index 1.65 (ii) in a medium of refractive index 1.33 (a) Will it behave as converging or diverging lens in the two cases ? (b) How will its focal length changes in the two media ?

A converging lens of refractive index 1.5 is kept in a liquid medium having the same refractive index. What would be the focal length of the lens in the medium ?

A biconcave lens made of a transparent material of refractive index 1.25 is immersed in water of refractive index 1.33. Will the lens behave as a converging or a diverging lens? Give reason.

A biconcave lens made of a transparent material of refractive index 1.5 is immersed in water of refractive index 1.33. Will the lens behave as a converging or a diverging lens? Give reason.

When a lens of power P (in air) made of material of refractive index mu is immersed in liquid of refractive index mu_(0) Then the power of lens is:

The given figure shows a convergent lens placed inside a cell filled with liquid. The lens has focal length +20 cm when in air , and its metrial has refractive index 1.50 . If the liquid has refractive index 1.60 , then focal length of the lens in the cell is