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Question 5011
NEET Physics · Easy

Units & Measurements: Errors in Measurement MCQ

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

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Errors in MeasurementEasyQuestion 5011

Question

A vernier has 1 mm main-scale divisions and 10 vernier divisions spanning 9 mm. Its least count is:
  1. A
    0.01 mm
  2. B
    0.1 mm
    Correct
  3. C
    1 mm
  4. D
    0.5 mm

Correct answer

0.1 mm

Explanation

Least count = 1 MSD − 1 VSD = 1 mm − 0.9 mm = 0.1 mm.

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