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Questions  >>  JEEMAIN and NEET  >>  NEET PAST PAPERS  >>  2018
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Q)

A student measured the diameter of a small steel ball using a screw gauge of least count 0.001 cm. The main scale reading is 5 mm and zero of circular scale division coincides with 25 divisions above the reference level. If screw gauge has a zero error of -0.004 cm, the correct diameter of the ball is


( A ) 0.521 cm
( B ) 0.053 cm
( C ) 0.525 cm
( D ) 0.529 cm

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