A glass lens of refractive index 1.5 is placed in a trough of liquid. What must to be the refractive index of the liquid in order to make the lens diappear.

What is the unit of refractive index?

A glass of refractive index 1.45 disappears when immersed in a liquid. What is the value of refractive index of the light?

What happens when a convex lens of refractive index 1.2 is immersed in a liquid of refractive index 1.3?

A convex lens of refractive index 1.5 is immersed in a liquid of refractive index: 1.6 What will happen to the focal length and nature of lens ?

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 this medium?

What is the significance of refractive index?

Explain what happens ,when a convex lens of refractive index 1.2 is immersed in a liquid of refractive index 1.3.

If refractive index of glass w.r.t. air is 1.55, then what is the refractive index of air w.r.t. glass.

A convex lens of refrative index 1.5 is immersed in a liquid of refractive index: 1.5. what changes happen to the focal length of the lens in the three cases?

A convex lens made up of glass of refractive index 1.5 is dipped,in turn ,in medum B of refractive index 1.33. whether it will behave as a converging lens or a diverging lens?