Science, asked by kripashankars191, 3 days ago

The focal length of a convex lens is 20 cm. What is its power? (B) 5D (A) 2D (C) 0.20 (D) 0.5D

Answers

Answered by Mfislam

5

Answer:

(B) 5D

Explanation:

The focal length of a convex lens is 20 cm. What is its power? (B) 5D

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