MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Common Rays in Thin Lenses

When will a c...

Question

When will a concave lens behave like a convex lens and when will a convex lens behave like a concave lens?

Open in App

Solution

A convex lens behaves as a concave lens and vice versa when placed in a liquid of refractive index greater than the refractive index of the lens.

Suggest Corrections

thumbs-up

41

Similar questions

Q. 1) When will a concave lens behave like convex lens?
2) When will a convex lens behave like a concave lens?

Q. When the plane surface of a plano-convex lens of refractive index

1.5

is silvered, it behaves like a concave mirror with

f = 30 c m

.When its convex surface is silvered, it will behave like a concave mirror of focal length:

Q. A plano-convex lens when silvered on the plane side behaves like a concave mirror of focal length

60 c m

. However, when silvered on the convex side, it behaves like a concave mirror of focal length

20 c m

.Then, the refractive index of the lens is

Q. A convex lens of focal length

f_{1}

is combined with a concave lens of focal length

f_{2}

and their combined focal length is observed to be

f

. The combination of these lenses will behave like a concave lens if

Q. A concave lens has been placed in an optically rarer medium. The lens will behave like

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Thin Lenses: Extended Objects

PHYSICS

Watch in App

explore_more_icon

Explore more

Common Rays in Thin Lenses

Standard XII Physics

Join BYJU'S Learning Program

CrossIcon