Least count = 1 Main scale division - 1 vernier scale division
Why? The story is very interesting. That has been already explianed by me while answering such a question. Please....
The least count of a vernier scale is calculated by dividing the smallest division on the main scale by the total number of divisions on the vernier scale. This calculation gives the value of one vernier division.
The least count of a vernier scale in a diffraction grating is typically determined by the formula for the number of lines per unit length on the grating. By dividing the distance between two adjacent lines on the scale by this number, you can calculate the least count of the vernier scale.
The least count of a vernier bevel protractor is typically 5 minutes or 0.083 degrees. This means it can measure angles with an accuracy of 5 minutes or 0.083 degrees.
Least count of vernier caliper= 1 MSD - 1 VSD. Main scale usually would have 1 mm as the minimum division. Such 9 divisions, ie 9 mm would be divided into ten equal parts in the vernier. So VSD = 0.9 mm Hence the least count = 1 - 0.9 = 0.1 mm If the same is to be given in centimetre, then it will be 0.01 cm.
No unit for vernier scale coincidence. But as we multiply it by least count which has unit then we get vernier scale reading with the same unit. Of course main scale reading and vernier scale reading would have the same unit
The least value which can be measured from any measuring instrument or device is called its least count. Generally the least count of a vernier caliper is 0.02mm.You can get a least count of 0.01mm in Digital vernier caliper.
Least Count [L.C]:-Least count is minimuim acuurate value meauserd by instrument.Least Count of Vernier Callipers:-The minimum value measured is 0.1mm but nowa days [l.c] is of 0.5mm.'
The least count of a vernier scale is calculated by dividing the smallest division on the main scale by the total number of divisions on the vernier scale. This calculation gives the value of one vernier division.
.02mm
micro meter least count in British system
0.01mm
i think 0.01
0.02
*Micrometer have a rotary handle and whereas vernier have a slider. *Micrometer is for measuring diameters while vernier is for measuring inside & outside diameter as well as depth. *Least Count of Vernier Caliper is 0.02mm *Least Count of Micrometer is 0.01mm
The least count of a vernier scale in a diffraction grating is typically determined by the formula for the number of lines per unit length on the grating. By dividing the distance between two adjacent lines on the scale by this number, you can calculate the least count of the vernier scale.
Standard is 0.01 mm
The least count of a vernier bevel protractor is typically 5 minutes or 0.083 degrees. This means it can measure angles with an accuracy of 5 minutes or 0.083 degrees.