Question
Question: Which of the following is the most preferred instrument for measuring length?...
Which of the following is the most preferred instrument for measuring length?
A
A vernier of least count 0.01 cm
B
A vernier having 20 divisions on the sliding scale
C
A vernier having 9 divisions on the sliding scale
D
A scale having 3 equal parts of each mm
Answer
A vernier having 20 divisions on the sliding scale
Explanation
Solution
Most preferred should have least least count. So vernier of 20 division.