CameraIcon

SearchIcon

MyQuestionIcon

1

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

Refraction at Curved Surfaces

If a thin len...

Question

If a thin lens is dipped in water, does its focal length change?

Open in App

Solution

Yes, the focal length of the lens will change. This is because its focal length is dependent on the medium in which the light rays travel.

Suggest Corrections

thumbs-up

5

Similar questions

Complete the following sentences :

(a) If half of a convex lens is covered, the focal length ..................... change, but the intersity of image ......................

(b) A convex lens is placed in water. Its focal length will ..................

(c) The focal length of a thin convex lens is ............... than that of a thick convex lens.

Q. A thin equiconvex lens is made of glass of R.I 1.5 and its focal length is 0.2 If it acts a concave lens of 0.5 m focal length when dipped in a liquid, the R.I of liquid is

Q. Focal length of a converging lens air in

R

. If it is dipped in water of refractive index

1.33

, then its focal length will be around (Refractive index of lens material is

1.5

)

Q. How does the power of a lens change if its focal length is doubled?

Q. A thin equiconvex lens is made of a glass of refractive index 1.5 and its focal length is 0.2 m. If it acts as a concave lens of 0.5 m focal length when dipped in a liquid, the refractive index of the liquid is:

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Spherical Lens

PHYSICS

Watch in App

explore_more_icon

Explore more

Refraction at Curved Surfaces

Standard IX Physics

Join BYJU'S Learning Program

CrossIcon