Question

If the power of a lens is - 4.0 D, then it means that the lens is a * 1 point A. concave lens of focal length -50 m B. convex lens of focal length +50 cm C. concave lens of focal length -25 cm D. convex lens of focal length -25 m

Answer 1

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Answer 2

if power of lens is -4.0 D it means that it is a Concave Lens

Answer 3

if power of lens is -4.0 D it means that it is a Concave Lens

Answer 4

if power of lens is -4.0 D it means that it is a Concave Lens