Home
Class 11
PHYSICS
The focal length of a thin biconvex lens...

The focal length of a thin biconvex lens is `20 cm`. When an object is moved from a distance of `25 cm` in front of it to `50 cm`, the magni-fication of its image changes from `m_(25) to m_(50)`. The ratio `(m_(25))/(m_(50))` is.

Promotional Banner

Similar Questions

Explore conceptually related problems

The focal length of thin biconvex lens is 20 cm . When an object is moved from a distance of 25 cm in front of it to 50 cm , the magni- fication of its image changes from m_(25) to m_(50) . The ratio (m_(25))/(M_(50)) is

The focal length of a thin biconvex lens is 20cm. When an object is moved from a distance of 25cm in front of it to 50cm, the magnification of its image changes from m_(25) to m_(50) . The ration m_(25)//m_(50) is

The focal length of a thin biconvex lens is 20cm .When an object in moved from a distance of 25cm infront of it to 50cm ,the magnification of the image changes from m_(1) to m_(2) .Find the ratio (m_(1))/(m_(2))

If the focal length of the biconvex lens is 25 cm, then the power of the lens will be

The focal length of a concave lens is 20 cm, if an object is placed at a distance of 50 cm in front of this concave lens, where is the image formed ? What is the nature of the image ?

Calculate the focal length of a convex lens which produces a virtual image at a distance of 50 cm of an object placed 20 cm in front of it.