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which of the following lense is perfect for. while reading small letter a) 50cm comvex lense b)50cm concave lense c) 5cm convex lense d)5cm concave lense |
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Answer» (C)Explanation:Answer is (c) A convex LENS of focal length 5 cm. A concave lens will always give a DIMINISHED image. Now, the smaller the focal length, the greater will be the power of the lens. Hence, a convex lens of focal length 5CM will be preferable.thank you |
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