JEE Physics · Easy

Errors and Measurements: Vernier Caliper MCQ

Solve this quality-checked JEE multiple-choice question, then review the correct answer and explanation.

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Vernier CaliperEasyQuestion 30104

Question

A vernier caliper has 10 divisions on the vernier scale that coincide with 9 main scale divisions of 1 mm each. What is its least count?
  1. A
    0.01 mm
  2. B
    0.1 mm
    Correct
  3. C
    1 mm
  4. D
    0.9 mm

Correct answer

0.1 mm

Explanation

LC = 1 MSD − 1 VSD = 1 − 9/10 = 0.1 mm.