Question

A student measure the length of a rod and wrote it as 3.50 cm which instrument did he use to measure it?
a) A metre scale
b) A venier callipers where the 10 divisions in vernier scale match with 9 divisions in main scale and main scale has 10 regions in 1 cm
c) A screw guage having 100 divisions in a circular scale and pitch as 1mm.
d) A screw gauge having 50 divisions in the circular scale and pitch as 1 mm.​

Answer 1

Explanation:

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