Physics · 2019
JEE Main · 9 January 2019, Shift 2 · Q30
The pitch and the number of divisions, on the circular scale, for a given screw gauge are 0.5 mm and 100 respectively. When the screw gauge is fully…
The pitch and the number of divisions, on the circular scale, for a given screw gauge are $\displaystyle 0.5$ mm and $\displaystyle 100$ respectively. When the screw gauge is fully tightened without any object, the zero of its circular scale lies $\displaystyle 3$ divisions below the mean line.
The readings of the main scale and the circular scale, for a thin sheet, are $\displaystyle 5.5$ mm and $\displaystyle 48$ respectively, the thickness of this sheet is :
Official answer
(1)
5.$\displaystyle 725$ mm
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