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A convex lens of focal length `5 cm` is used as a simple microscope. What will be the magnifying power when the image is formed at the least distance

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A convex lens of focal length `5 cm` is used as a simple microscope. What will be the magnifying power when the image is formed at the least distance of distinct vision ?
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Correct Answer - `6`
Here, `f = 5 cm, d = 25 cm, m = ?`
`m = (1 + d//f) = (1 + 25//5) = 6`
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