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The figure shown below is a screwgauge. ...

The figure shown below is a screwgauge. When the circular scale division matches the main scale at 43, the 6.5 mm mark on the main scale is just visible. The main scale has `(1)/(2)mm` marks. In complete rotation, the screw advances by `(1)/(2)` mm and circular scale has 50 divisions. The reading of the screwgauge is

A

6.93 mm

B

5.93 mm

C

4.93 mm

D

7.93 mm

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The correct Answer is:
A
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