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A lens of focal length `12 cm` forms an upright image three times the size of a real object. Find the distance in cm between the object and image. |
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Answer» Correct Answer - A::C Virtual, magnified and erect image is formed by convex lens. Let `u=-x` Then, `v=-3x` Now, `1/(-3x)-1/-x=1/(+12)` `:. X=8 cm` Distance between object and image `=3x-x=2x=16 cm` |
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