Question

1. A ball is given whose diameter is to be measured. Ten divisions of vernier scale are found to
coincide with 9 main scale divisions. The main scale reading comes out to be 35 mm. 5th division
on vernier scale coincides with main scale. If one main scale division is 1 mm, find the diameter
of the ball.​

Answer 1

Answer:

10÷10=1

9×1= 9

9÷5 = 1.8 =

1.8 ÷100

the diameter =

0.018 (ans) this is the diameter of the ball