Thee are four vernier scales whose specifications are given below: (a – value of main scale division, n-number of divisions on vernier).

(i) a = 1mm, n = 10; (ii) a = 0.5 mm, n = 10;

(iii) a = 0.5 mm, n = 20; (iii) a = 1mm, n = 100

Then which of the following statements is/are correct?

(a) Lease count of (i) is 0.1 mm

(b) Least count of (ii) is 0.025 mm

(c) Least count of (iii) is 0.05 mm

(d) Least count of (iv) is 0.01 mm

Hrishant Goswami , 12 Years ago

Grade 10