question_answer

The circular divisions of shown screw gauge are 50. It moves 0.5 mm on main scale in one rotation. The diameter of the ball is

A) 2.25 mm              

B) 2.20 mm

C) 1.20 mm              

D)  1.25 mm

Correct Answer: C

Solution :

Zero error \[\Delta G\] Actual measurement \[{{\text{S}}_{\text{rhombic}}}\xrightarrow[{}]{{}}{{\text{S}}_{\text{monoclinic}}}\] \[n;l;{{m}_{l}};{{m}_{s}}\]