Question

D) time,
A) mass, time
3.
B) time, length C) mass, length
The circular head of a screw gauge is divided into 200 divisions and move 1 mm ahead
in one revolution. Find the pitch and least count of the screw gauge. If the same
instrument has a zero error of -0.05 mm and the reading on the main scale in
measuring diameter of wire is 6 mm and that on circular scale is 45, find the diameter
of the wire.
A) 6.275 cm
B) 6.275 mm
C) 6.275 m
D) 0.6275 m​

Answer 1

Answer:

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Explanation:

The pitch of a screw gauge is 1 mm and there are 100 divisions on the circular scale. While measuring the diameter of a wire, the linear scale reads 1 mm and 47

th

division on the circular scale coincides with the reference line. The length of the wire is 5.6 cm. Find the curved surface area (in cm

2

) of the wire in appropriate number of significant figures

*2.6