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
To find the sensitivity of a vernier caliper, measure the least count of the caliper (typically 0.02 mm) by dividing the smallest division on the main scale by the number of divisions on the vernier scale. For a micrometer, measure the least count (typically 0.01 mm) by dividing the smallest division on the main scale by the number of divisions on the thimble scale. Sensitivity indicates the smallest change in measurement that can be detected by the instrument.
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.
First we keep the body in between the jaws of the caliper. Then we note the main scale reading and then vernier coincidence. Vernier coincidence is to be multiplied by the least count of the device. This is added with the main scale. That will be the required value of the dimensions of the object.
In case for micrometer, principle of pitch is used. Least count could be even micro meter But in vernier caliper, difference of main scale division and vernier scale division is the principle Least count could be 0.02 mm
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.
0.01mm
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.'
*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
LC FOR VERNIER CALIPER-0.1mm LC FOR MICROMETER -0.01 mm L.C- NO OF SMALLEST DIVISION ON MAIN SCALE ------------------------------------------------------- TOTAL NO OF DIVISION ON VERNIER SCALE
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
LC FOR VERNIER CALIPER-0.1mm LC FOR MICROMETER -0.01 mm L.C- NO OF SMALLEST DIVISION ON MAIN SCALE ------------------------------------------------------- TOTAL NO OF DIVISION ON VERNIER SCALE
LC FOR VERNIER CALIPER-0.1mm LC FOR MICROMETER -0.01 mm L.C- NO OF SMALLEST DIVISION ON MAIN SCALE ------------------------------------------------------- TOTAL NO OF DIVISION ON VERNIER SCALE
To find the sensitivity of a vernier caliper, measure the least count of the caliper (typically 0.02 mm) by dividing the smallest division on the main scale by the number of divisions on the vernier scale. For a micrometer, measure the least count (typically 0.01 mm) by dividing the smallest division on the main scale by the number of divisions on the thimble scale. Sensitivity indicates the smallest change in measurement that can be detected by the instrument.
The least count of the vernier caliper is calculated by dividing the smallest division on the main scale by the total number of divisions on the vernier scale. In this case, 1 cm on the main scale is divided into 20 equal parts, so the least count is 1 cm / 20 = 0.05 cm or 0.5 mm.
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