When a screw gauge with a least count of $0.01 m m$ is used to measure the diameter of a wire, the reading on the sleeve is found to be $1 m m$ and the reading on the thimble is found to be $27$ divisions. What is the diameter of the wire in cm ?

0.127 c m

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0.127 m m

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1.27 c m

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0.027 c m

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Solution

The correct option is A $0.127 c m$
Diameter of wire is $= 1 + 27 \times 0.01 = 1.27 m m = 0.127 c m$

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When a screw gauge of least count 0.01 mm is used to measure the diameter of a wire, the reading on the sleeve is found to be 1 mm and the reading on the thimble is found to be 27 divisions. (i) What is the diameter of the wire in cm ? (ii) If the zero error is + 0.005 cm, what is the correct diameter ?

Q. When a screw gauge with a least count of 0.01 mm is used to measure the diameter of a wire, the reading on the sleeve is found to be 1 mm and the reading on the thimble is found to be 27 divisions.
(i) What is the diameter of the wire in

c m

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(ii) If the zero error is +0.005 cm, what is the correct diameter?

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When a screw gauge with a least count of 0.01mm is used to measure the diameter of a wire, the reading on the sleeve is found to be 1mm and the reading on the thimble is found to be 27 divisions. What is the diameter of the wire in cm ?

The correct option is A 0.127cmDiameter of wire is =1+27×0.01=1.27 mm=0.127 cm

When a screw gauge with a least count of $0.01 m m$ is used to measure the diameter of a wire, the reading on the sleeve is found to be $1 m m$ and the reading on the thimble is found to be $27$ divisions. What is the diameter of the wire in cm ?

The correct option is A $0.127 c m$
Diameter of wire is $= 1 + 27 \times 0.01 = 1.27 m m = 0.127 c m$