The least count of a Vernier is the:a)Value of the division on the mai...
The minimum length that can be measured using the Vernier callipers is called its least count.
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The least count of a Vernier is the:a)Value of the division on the mai...
Explanation:
The least count of a Vernier is the smallest measurement that can be read or measured using the Vernier scale. It is the difference between one main scale division and one Vernier scale division.
Understanding the Vernier Scale:
A Vernier scale is a secondary scale that is used to measure more accurately than what is possible with a regular scale or ruler. It consists of a main scale, which is a regular scale with evenly spaced divisions, and a Vernier scale, which is a smaller scale with divisions that are slightly smaller or larger than the divisions on the main scale.
Concept of Least Count:
The least count is the smallest measurement that can be made using an instrument. In the case of a Vernier scale, it is determined by the difference between one main scale division and one Vernier scale division. This difference is used to measure or read values that fall between the evenly spaced divisions on the main scale.
Calculation of Least Count:
To calculate the least count of a Vernier scale, we need to determine the difference between one main scale division and one Vernier scale division. This can be done by dividing the length of one main scale division by the number of divisions on the Vernier scale.
For example, if the length of one main scale division is 1 mm and the Vernier scale has 10 divisions, the length of one Vernier scale division would be 1 mm / 10 = 0.1 mm.
Therefore, the least count of the Vernier scale in this case would be 0.1 mm, which means that the smallest measurement that can be made using this Vernier scale is 0.1 mm.
Conclusion:
The correct answer to the question is option 'D' - the least count of a Vernier is the difference between one main scale division and one Vernier scale division. This difference is used to measure or read values that fall between the evenly spaced divisions on the main scale.
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