class 12

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JEE Advanced

The diameter of a cylinder is measured using a Vernier callipers with no zero error. It is found that the zero of the Vernier scale lies between 5.10 cm and 5.15 cm of the main scale. The Vernier scale has 50 divisions equivalent to 2.45 cm. The $24_{th}$ division of the Vernier scale exactly conicides with one of the main scale divisions. The diameter of the cylinder is

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