MyQuestionIcon

1

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

Cutting of Thin Lenses

A convergent ...

Question

A convergent lens made of crown glass (refractive index 1.5) has focal length 20cm in air. If it is immersed in a liquid of refractive index 1.60, its focal length will be:

A

160cm

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

-80cm

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

-160cm

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

D

100cm

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is C
-160cm

Suggest Corrections

thumbs-up

14

Similar questions

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

Q. A convergent (biconvex) lens is placed inside a jar filled with a liquid. The lens has focal length

20 c m

, when in air and its material has a refractive index of

1.5

. If the liquid has a refractive index of

1.6

, the focal length of the lens while in the jar is

Q. A glass convex lens has a focal length of

20

cm in air. What will be its focal length, when it is completely immersed in a liquid of refractive index

1.63

_{a} μ_{g} = 1.5

Q. A thin convex lens which is made of glass (refractive index

1.5

) has a focal length of

20 c m

.it is now completely immersed in a transparent liquid having refractive index

1.75

. Find the new focal length of the lens.

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Playing with Thin Lenses

PHYSICS

Watch in App

explore_more_icon

Explore more

Cutting of Thin Lenses

Standard XII Physics

Join BYJU'S Learning Program

CrossIcon