Question

Each division on the main scale is 1 mm. Which of the following vernier scales give vernier constant equal to 0.01 mm?

Answer 1

n= 99 is the correct answer

Explanation:

Least count = 1 MSR−1 VSR

Vernier constant=  

1 MSD  / Number of divisions on vernier scale  =0.01

Number of divisions on vernier scale =100 divisions

Let n be the divisions on vernier scale with which 1 mm on MSR coincides with vernier scale.

0.01= 1−  n/100

n=99

Answer 2

Answer:

99mm divided into 100 divisions