Published by:
CGP EDU Academic Team
Published on: September 12, 2026
The pitch of the screw guage is 
and there are 
divisions on the circular scale. When nothing is put inbetween the jaws, the zero of the circular scale lines 
divisions below the reference line. When a wire isplaced between the jaws, the first linear scale division is clearly visible while 
division on circular scale coincides with the reference line. The radius of the wire is:
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
Least count 
+ve error 
measured reading 
True reading 
Radius 
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