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JEE Main & Advanced AIEEE Solved Paper-2011

  • question_answer
    A screw gauge gives the following reading when used to measure the diameter of a wire.              Main scale reading:                            0 mm Circular scale reading:                        52 divisions Given that 1 mm on main scale corresponds to 100 divisions of the circular scale.              The diameter of wire from the above data is   AIEEE  Solved  Paper-2011

    A) 0.005 cm                 

    B) 0.52 cm

    C) 0.052 cm                 

    D) 0.026 cm

    Correct Answer: C

    Solution :

                 Diameter = main scale reading \[+1.c.\times \] circular scale reading                                 \[=0+52\times \frac{1}{100}mm\]                                 \[=0.52mm=0.052\,cm\]


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