The circular scale of a screw gauge has 50 divisions and pitch of 0.5 mm. Find the diameter of sphere. Main scale reading is 2 -

The circular scale of a screw gauge has 50 divisions and pitch of 0.5

1.	The circular scale of a screw gauge has 50 divisions and pitch of 0.5 mm. Find the diameter of sphere. Main scale reading is 2 -
Answer» `1.2` `1.25` `2.207` `2.25` Solution :LEAST COUNT `= (0.5)/(50) = 0.01 mm` DIAMETER of sphere `= 2 xx 0.5 + (25 -5)xx 0.01 = 1.2 mm`