Which measurement instrument is used here?

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 meter scale

(B).  A Vernier caliper where the 10 divisions in Vernier scale matches with 9 division in mainscale and main scale has 10 divisions in 1 cm

(C).  A screw gauge having 100 divisions in the circular scale and pitch as 1 mm.

(D).  A screw gauge having 50 divisions in the circular scale and pitch as 1 mm.

 How to find the answer to this question?

2 Answers

Relevance
Still have questions? Get answers by asking now.