Question

98th division of circular scale coinsides with base line and total number of divisions on circular scale is 100. if the least count is 0.001 cm.find zero error of screw gauge​

Answer 1

Explanation:

coinciding division = 98th

it seems it's a negative zero error

98 th division is coinciding

for negative error

division = 100- 98

2

Negative zero error = - Lc x coinciding division

= -0.001 CM x 2

= -0.002 CM