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A student measured the length of a rod a...

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

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

Text Solution

Verified by Experts

The correct Answer is:
D
Least count of vernier callipers is 0.01 cm
Hence it matches with the reading.
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