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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) 0.525 cm

(c) 0.053 cm

(d) 0.529 cm

1 Answer

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Best answer

Correct Option (d) 0.529 cm

Explanation:

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