Home
Class 10
PHYSICS
A concave lens of focal length 25 cm and...

A concave lens of focal length 25 cm and a convex lens of focal length 20 cm are placed in contact with eachother. What is the power of this combination ? Also, calculate focal length of the combination.

Promotional Banner

Similar Questions

Explore conceptually related problems

If a convex lens of focal length 20 cm and a concave lens of focal length 30 cm are kept in contract with each other. What will the power of the combination ?

A concave lens of focal length 12 cm and a convex lens of focal length 20 cm are kept in contact with each other . What will be the behavour of the combination /

A concave lens of focal length 12 cm and a convex lens of focal length 20 cm are kept in contact with each other . Find the focal length of the combination .

If the convex lens of focal length 10 cm and a concave lens of focal length 50 cm are kept in contact with each other. What will be the power of combination ?

If a convex lens of focal length 20 cm and a concave lens of focal length 30 cm are kept in contract with each other. What will be the behaviour of the combination ?

If a convex lens of focal length 20 cm and a concave lens of focal length 30 cm are kept in contract with each other. What will be the focal length of the combination ?

A convex lens of focal length 80 cm and a concave lens of focal length 50cm are placed in contact. The resulting will be—

If the convex lens of focal length 10 cm and a concave lens of focal length 50 cm are kept in contact with each other. What will be the focal length of the combination ?

A convex lens of focal lenth 30 cm and a concave lens of focal length 60 cm are placed in contact.Find the power of the combination.

A convex lens of focal length 30 cm and a concave lens of focal length 0.6m are placed in contact. Find the power of the combination.