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JEE Main & Advanced Physics Mathematical Tools, Units & Dimensions Question Bank Self Evaluation Test - Physical World, Units and Measurements

  • question_answer
    The pitch of the screw gauge is 0.5 mm. Its circular scale contains 50 divisions. The least count of the screw gauge is

    A) 0.001mm

    B)  0.01mm

    C)  0.02mm

    D)  0.025mm

    Correct Answer: B

    Solution :

    [b] Least count \[\frac{0.5}{50}=0.01mm\]


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