Question

if two lens of equal power 2d is combine then what is the power combination of one lens is concave and other is convex.​

Answer 1

Answer:

Convex lens is converging lens while concave lens is diverging lens. If these two types of lens of same power are combined together, the diverging power of one will be cancelled out by the converging power of the other. So the combination will act like a glass block

Answer 2

Answer:

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