The focal length of convex lens is 0.25 m calculate the power of lens
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Explanation:
The power of a convex lens is positive. Hence, focal length of convex lens is also positive. The required Option (a) "A convex lens has 4 dioptre power having a focal length 0.25 m" is correct
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Answer:
"The power of a convex lens is positive. Hence, focal length of convex lens is also positive. The required Option (a) "A convex lens has 4 dioptre power having a focal length 0.25 m" is correct."
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