MyQuestionIcon

1

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

Telescope

a convex lens...

Question

a convex lens immersed in water of refractive index 4/3 has a focal length of 40 cm and the same lens when immersed in a liquid of refractive index 2 has a focal length of -20 cm. the refractive index of the material of the lens is.

Open in App

Solution

Suggest Corrections

thumbs-up

7

Similar questions

Q. A convex lens have focal length of 20 cm. the material of lens has refractive index of

1.5

is immersed in water of refractive index 4/3. find the change in focal length of the lens.

Q. A double convex lens made of a material of refractive index 1.5 and having a focal length of 10 cm is immersed in liquid of refractive index 3.0. The lens will behave as

Q. A thin convex lens of refractive index

1.5

20 c m

focal length in air. If the lens is completely immersed in a liquid refractive index

1.6

, its focal length will be :

Q. The focal length of a biconvex lens of refractive index 3/2 is 18 cm .Its focal length in meters when immersed in a liquid of refractive index 4/3 is

Q. Focal length of a convex lens of refractive index 1.5 is 2cm. Focal length of lens when immersed in a liquid of refractive index 1.25 will be

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Telescope Tackle

PHYSICS

Watch in App

explore_more_icon

Explore more

Standard X Physics

Join BYJU'S Learning Program

CrossIcon