Question

A student uses a concave lens of power 2D and a convex lens of power 5D.What will the net power of their combination​

Answer 1

Answer:

5D + 2D = 7D

Explanation:

Formula: Net Power = Sum of Power of all Lenses.

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Answer 2

Answer:

The combined power is the algebraic sum of the individual powers of the lenses. Therefore, the power of the combination of the lenses is - 2.5 D.

Explanation:

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