A convex lens of focal length f cut into...

A convex lens of focal length f cut into parts first horizontally and then vertically. Find the focal length of part A of the lens, as shown:

A

f/2

B

f

C

(3/2)f

D

2f

Text Solution

Verified by Experts

The correct Answer is:

D

(d) The focal length of each part will be 2f.

Topper's Solved these Questions

RAY OPTICS
DC PANDEY ENGLISH|Exercise Checkpoint 9.5|10 Videos
RAY OPTICS
DC PANDEY ENGLISH|Exercise Checkpoint 9.6|20 Videos
RAY OPTICS
DC PANDEY ENGLISH|Exercise Checkpoint 9.3|20 Videos
NUCLEI
DC PANDEY ENGLISH|Exercise C MADICAL ENTRANCES GALLERY|46 Videos
REFLECTION OF LIGHT
DC PANDEY ENGLISH|Exercise Subjective|9 Videos

Similar Questions

Explore conceptually related problems

Find the focal length of the lens shown in Fig.

Find the focal length of the lens shown in the Fig..

An equiconvex lens of focal length 15 cm is cut into two equal halves in thickness. What is the focal length of each half ?

A convex lens of focal length f_(1) is kept in contact with a concave lens of focal length f_(2) . Find the focal length of the combination.

A thin convex lens of focal length 20 cm is kept in contact with a thin concave lens of focal length 15 cm. Find the focal length and the nature of the combination.

A converging lens of focal length 40 cm is kept in contact with a diverging lens of focal length 30 cm. Find the focal length of the combination.

A plano convex lens has focal length f = 20 cm . If its plane surface is silvered, then new focal length will be

A convex lens of focal length A and a concave lens of focal length B are placed in contact. The focal length of the combination is

A convex lens of focal length 40 cm is in contact with a concave lens of focal length 25 cm. The power of the combination is

DC PANDEY ENGLISH-RAY OPTICS-Checkpoint 9.4

An air bubble contained inside water. It behaves as
Text Solution
|
A convex lens has a focal length of 20 cm. It is used to form an image...
Text Solution
|
In figure, an air lens of radius of curvature of each surface equal to...
Text Solution
|
A plano convex lens is made of glass of refractive index 1.5. The radi...
Text Solution
|
At what distance from a convex lens of focal length 30cm an object sh...
Text Solution
|
A plano-convex lens is made of flint glass, its focal length is
Text Solution
|
Distance of an object from a concave lens of focal length 20 cm is 40 ...
Text Solution
|
Where should an object be placed from a converging lens of focal lengt...
Text Solution
|
An object is placed at 10 cm from a lens and real image is formed with...
Text Solution
|
The real image which is exactly equal to the size of an object is to b...
Text Solution
|
A plano-convex lens of curvature of 30 cm and refractive index 1.5 pro...
Text Solution
|
The minimum distance between an object and its real image formed by a ...
Text Solution
|
A convex lens of refractive index 3/2 has a power of 2.5^(@). If it is...
Text Solution
|
Two thin lenses of focal length f(1) and f(2) are in contact and coaxi...
Text Solution
|
Two thin lenses, one of focal length + 60 cm and the other of focal le...
Text Solution
|
A convex lens of focal length 40 cm is in contact with a concave lens ...
Text Solution
|
Two similar planoconvex lenses are combined together in three differen...
Text Solution
|
A convex lens of focal length f cut into parts first horizontally and ...
Text Solution
|
A converging lens is used to form an image on a screen. When the upper...
Text Solution
|
If in a plano-convex lens, the radius of curvature of the convex surfa...
Text Solution
|