Question

What will be the nature of the image formed formed from both a convex lens and a concave lens of 20 centimeter focus distance, when the object is placed at a distance of 10 centimeter

Answer 1

Explanation:

If a point object is held at a distance of 20 cm from the compound lens, find the position ... Two lenses, one convex and another concave, of the focal lengths 10 cm and 20 ... hence,image will be formed at infinity.