1)Main Scale is fixed(It does not move) Vernier scale slides along main scale.
2)Least count of Mainscale is 0.1cm
Least count of vernier scale is 0.01cm
The smallest division on the main scale of a vernier caliper typically corresponds to 1 millimeter. The vernier scale allows for more precise measurements by measuring to the nearest 0.1 millimeter.
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 vernier scale provides a more precise measurement by showing how much the object has moved past a whole number on the main scale. Since 4 divisions of the vernier scale coincide with one less division on the main scale, each division on the vernier scale represents 1/4 of a division on the main scale. In this case, the total reading would be 35 main scale divisions plus 4 divisions on the vernier scale, giving a total of 35.25 divisions on the main scale. To find the radius of the cylinder, you would measure the circumference with a tape measure or string and then divide that measurement by 2π to find the radius.
first find out least count of main circular scale in degrees,then divide least count of main scale by total divisions on cylindrical scale(this cylindrical scale works as vernier scale for fist one,its least count will be in minutes) then further divide least count of cylindrical scale by total divisions of small vernier scale which touches it,(this small scale works as vernier scale for cylindrical scale and its least count will be in seconds).
The zero reading of a vernier caliper is when the jaws are closed and the main scale '0' mark aligns perfectly with the zero mark on the vernier scale. This is the reference point for taking measurements with the vernier caliper.
Vernier scale consists of main scale and vernier scale. The first line or the zeroth line coinciding with the main scale reading is the main scale reading. The vernier line except zeroth line coinciding with any line on main scale is the main scale reading.
To take a main scale reading, identify the whole number on the main scale that is to the left of the zero mark on the vernier scale. Then, identify the vernier scale division that aligns closely with a division on the main scale. Add the main scale reading and the vernier scale reading together to get the final measurement.
Their Vernier scale consists of two readings; the Vernier scale and the main scale. One can read that by the first line is the main scale and the next line is the Vernier reading.
The main scale is before the zero line of the vernier scale.
Well it uses two graduated scales, a main scale similar to that on a ruler, and a specially graduated scale, the vernier, that slides parallel to the main scale and enables readings to be made to a fraction of the main scale.The main scale measure to one decimal place and the mark on the main scale that face opposite the supporting scale is taken to the second decimal ..
The principle of a vernier caliper is that it uses a main scale and a sliding vernier scale to provide accurate measurements of length, thickness, or diameter. The vernier scale has a slightly smaller increment than the main scale, allowing for precise readings to be taken. By aligning the zero mark on the vernier scale with the closest mark on the main scale, the user can determine the measurement with high accuracy.
The smallest main scale division in a vernier scale with 50 divisions is 1/50th of the main scale division. This is because each division on the vernier scale corresponds to 1/50th of a main scale division, allowing for more precise measurements to be made.
You would read the main scale reading on the vernier caliper from the scale that is closest to the object being measured. The vernier scale reading is obtained by noting which vernier scale division aligns with a main scale division. The combined main scale reading and vernier scale reading provide the precise measurement of the object.
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 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.
We need two readings. One is Main scale reading and the other is vernier scale reading. Main scale reading will be read on the main scale. We need an indicator to read it. Right? The marking ie zero of the vernier is that indicator. So the reading on the main scale which has been just crossed by zero of the vernier is taken as Main scale reading. Now to get VSR, we need vernier scale coincidence. How do we get this? Any one of the divisions of the vernier will be found coincided with some divisions marked on the main scale. We don't worry about that main scale division but we concentrate only on the vernier scale division. This is VSC This VSC is to be multiplied by least count. So VSC x LC gives the VSR Now MSR + VSR gives the accurate reading.
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.