least count: meter scale -1mm, vernier callipers-0.1 mm , screw guage-0.01 mm and spherometer-0.05mm.
Answers
Explanation:
To determine the Least Count of that Circular Vernier Scale. the principle is similar to that of the linear vernier scale. The entire circle is divided in to 360 degrees. Then, Least count = s - v = s - (59/60)s = (1/60) s = 1/60 degree = 1 minute. andscrew gauge of 100 divisions will move the cap scale along the main scale by 1/100 of mm-0.01 mm. This is the minimum value up to which a screw gauge can measure and is known as its least count. Or it is defined as the ratio between the pitch of the screw and the number of division on the circular scale and Least Count of Vernier or Vernier Constant : It is defined as the difference between the values of one main scale division and one vernier scale division .
L.C.= Value of one main scale division – Value of one vernier scale division. ...
OR L.C. = Value of one main scale division / Total number of divisions on vernier.