Home
Class 12
PHYSICS
Two converging lenses have focal length ...

Two converging lenses have focal length `f_1 and f_2` The optical axes of the two lenses coincide. This lens system is used to form an image of an object . It is observed that the size of the image does not depend on the distance between the system and object . The distance between lenses is

A

`(f_(1)f_(2))/(f_(1)+f_(2))`

B

`f_(1)+f_(2)`

C

`|f_(1)-f_(2)|`

D

`((f_(1)-f_(2))^(2))/(f_(1))`

Text Solution

Verified by Experts

Promotional Banner

Similar Questions

Explore conceptually related problems

Two thin lenses of focal lengths f_(1) and f_(2) are in contact. The focal length of this combination is

An object is placed 12cm in front of a lens to form an image on a screen. The size of the image is twice that of the object. What is the distance between the object and the image?

Two convex lenses placed in contact form the image of a distant object at P. If the lens B is moved to the right, the image will

Two convex lenses placed in contact form the image of a distant object at P. If the lens B is moved to the right, the image will

A converging lens is used to obtain an image of an object placed in front of it. The inverted image is formed between F_(2)and2F_(2) of the lens. Where is the object placed ?

Two convex lenses of focal lengths 0.3m and 0.05m are used to make a telescope. The distance kept between the two is

A convex lens of focal length f forms an image which is 1/3 times the size of the object. Then, the distance of object from the lens is

A lens of focal length 12 cm forms an upright image three times the size of a real object. Find the distance in cm between the object and image.

A converging lens forms a five fold magnified image of an object. The screen is moved towards the object by a distance d=0.5 m, and the lens is shifted so that the image has the same size as the object. Find the power of lens and the initial distance between the object and the screen.

The focal lengths of the objective and eyelens of a microscope are 1.6 cm and 2.5 cm respectively. The distance between the two lenses is 21.7 cm. If the final image is formed at infinity, the distance between the object and the objective lens is :