A student measured the length of a rod and wrote it as 3.50 cm. Which instrument did he use to measure it?
A screw gauge having 50 divisions in the circular scale and pitch a 1 mm.
A Vernier calliper where the 10 divisions in Vernier scale matches with 9 divisions in main scale and the main scale has 10 divisions in 1 cm.
A meter scale
A screw gauge having 100 divisions in the circular scale and pitch as 1 mm.
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