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JEE Advanced 2023 Paper 1 Solutions

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Question : 10

Total: 51

In an experiment for determination of the focal length of a thin convex lens, the distance of the object from the lens is 10±0.1‌cm and the distance of its real image from the lens is 20±0.2‌cm. The error in the determination of focal length of the lens is n%. The value of n is________

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