The pitch and the number of divisions, on the circular scale for a given screw gauge are 
and 
respectively. When the screw gauge is fully tightened without any object, the zero of its circular scale lies 
division below the mean line. The readings of the main scale and the circular scale, for a thin sheet, are 
and 
respectively, the thickness of the sheet is:
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
Least count of screw gauge,
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