Question

Combination of two concave lens gives​

Answer 1

Explanation:

When we have two convex lenses in contact we have the combination behaving as a converging lens.

Answer 2

Answer:

In physics, energy is the quantitative property that must be transferred to an object in order to perform work on, or to heat, the object. Energy is a conserved quantity; the law of conservation of energy states that energy can be converted in form, but not created or destroyed