MyQuestionIcon

1

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

Principle of Reversibility of Light

An equal conv...

Question

An equal convex lens of $υ = 1.5$ has a focal length of 20 cm in air. Now that lens kept in the medium of refractive index 3. An object is kept at distance 30 cm from the lens in the same medium. Find its image distance from the lens is :

A

24 cm

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

B

12 cm

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

C

10 cm

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

D

None

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

Open in App

Solution

The correct option is B 12 cm
correct option is B.

Suggest Corrections

thumbs-up

0

Similar questions

Q. A point object is placed in front of an equi- convex lens, of refractive index

1.5

and focal length

20 cm

, at a distance

10 cm

from the lens. If the farther side of the lens from the object is silvered then find the image distance from the lens

Q. The focal length of a convex lens is

20 c m .

If an object is kept at a distance of

100 c m

from the lens, find out the distance of the image formed from the lens.

Q. A thin lens of refractive index 1.5 has a focal length of 15 cm in air. When the lens is placed in a medium of refractive index 4/3, its focal length will become

An object is placed at $30 c m$ in front of the convex lens of focal length $10 c m$ . Find out the image distance from lens?

Q. A plano convex lens of refractive index

1.5

and radius of curvature

30 cm

is silvered at the curved surface. Now this lens has been used to form the image of an object. At what distance from this lens, an object needs to be placed in order to have a same size image of the object?

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Budding

PHYSICS

Watch in App

explore_more_icon

Explore more

Principle of Reversibility of Light

Standard X Physics

Join BYJU'S Learning Program

CrossIcon