Question

power of lens is -2.0D . the focal lenght and type of lens are respectively

Answer 1

Here Is Your Ans ⤵

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➡P = 1 / F

➡F = 1 / - 2.0

➡type of lens is concave lens

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Answer 2

Answer:

Explanation:

power of a lens = 1 / focal length

so, focal length = - 1 / 2

                          = - 0.5 m

Type of lens is concave.

Note: for convex lens it is positive and for concave lens it is negative