NEET Physics Vernier Caliper MCQ Question
In the diagram shown above, the vernier caliper is used to measure the diameter of a cylindrical object. If the vernier scale has 10 divisions coinciding with 9 main scale divisions, each 1 mm, what is the least count of the instrument?
0.01 cm
0.1 mm
0.02 mm
0.1 cm
Correct Answer
Detailed Explanation
The least count is calculated as the difference between one main scale division (1 mm) and one vernier scale division. With 10 VSD coinciding with 9 MSD, the least count is (1 - 0.9) mm = 0.1 mm = 0.01 cm.
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