Published by:
CGP EDU Academic Team
Published on: August 21, 2026
A screw gauge gives the following readings 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 on the circular scale. The diameter of the wire from the above data is:
Text Solution
Verified by ExpertsThe correct answer is:
Least count = 
= 0.01 mm
Diameter of the wire = GSR x LC
= 52 x 0.01mm
= 0.52 mm
d = 0.052 cm
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