Question
Physics Question on Units and measurement
A screw gauge with a pitch of 1 mm and a circular scale with 100 divisions is used to measure the thickness of the aluminium sheet. Negative zero error of 0.05 mm is there. What is the thickness of the sheet when main scale reading is 4 mm and 60th division coincides with the main scale line
A
10.05 mm
B
10.10 mm
C
10.15 mm
D
10.20 mm
Answer
10.05 mm
Explanation
Solution
The Correct answer is option is (A) : 10.05 mm