The power of your friend lens is -2 D. which lens is used by your friend? *
1. Concave
2. Convex
3. Both
4. None of these
Answers
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0
Answer:
concave
Explanation:
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Answered by
1
Answer:
concave lens
Explanation:
The power of a convex lens is positive as a convex lens has a positive focal length, while the power of a concave lens is negative as concave lens has a negative focal length. It is because focal length of convex lens is +ve and. Since P=1/f. Therefore power of convex lens is positive.
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