Home
Class 11
PHYSICS
Find the focal length and power of a con...

Find the focal length and power of a convex lens, which when placed in contact with a concave lens of focal length `25 cm` forms a real image `5` times the size of the object placed `20 cm` from the combination.

Promotional Banner

Similar Questions

Explore conceptually related problems

A convex lens of focal length 16 cm forms a real image double the size of the object. The distance of the object from the lens is

A convex lens of power +2.5 D is in contact with a concave lens of focal length 25 cm. The power of combination is

A convex lens of power +2.5 D is in contact with a concave lens of focal length 25 cm. The power of combination is

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

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

Find the nature and focal length of a lens which must be placed in contact with a concave lens of focal length 25cm in order that the lens combination may produce a real image of an object placed at infinity.

a concave lens of focal length 20cm is placed in contact with a convex lens of focal length 40cm. Find the power of the combination.