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JEE Advanced 2026 Paper 2 Online
Numerical
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Two thin wires, Wire-1 of diameter 0.650 mm and Wire-2 of unknown diameter d are given. To obtain the value of d, the diameters of the two wires are measured with a screw gauge. The screw gauge has a pitch of 0.5 mm and there are 100 divisions on the circular scale (CS). The smallest division on the linear scale (LS) is 0.5 mm. The table shows the readings of LS and CS for the measurements. The value of d (in µm) is :
| LS (mm) | CS | |
|---|---|---|
| Wire-1 | 0.5 | 42 |
| Wire-2 | 1.5 | 95 |
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