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Which instrument did he use to measure it ? A student measured the length of a rod and wrote it as 3.50 cm.



A. A screw gauge having 100 divisions in the circular scale and pitch as 1 mm.
B. A screw gauge having 50 divisions in the circular scale and pitch as 1 mm.
C. A meter scale
D. A vernier calliper where the 10 divisions in vernier scale matches with 9 division in main scale and main scale has 10 divisions in 1 cm.

This question is part of VRs JEE MOCK TEST -1
Asked by VREducation, Last updated: May 22, 2020

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VREducation

VREducation

Answered Apr 11, 2018

A vernier calliper where the 10 divisions in vernier scale matches with 9 division in main scale and main scale has 10 divisions in 1 cm.

Least count of varnier calliper is 0.01 cm .Hence it matches with the reading####
 

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