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Question 5028
NEET Physics · Medium

Units & Measurements: Screw Gauge & Vernier MCQ

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

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Screw Gauge & VernierMediumQuestion 5028

Question

In a vernier caliper, the main scale has 1 mm divisions and 20 divisions of the vernier scale equal 19 mm of the main scale. The least count is:
  1. A
    0.5 mm
  2. B
    0.05 mm
    Correct
  3. C
    0.1 mm
  4. D
    0.01 mm

Correct answer

0.05 mm

Explanation

1 VSD = 19/20 mm = 0.95 mm. LC = 1 MSD − 1 VSD = 1.00 − 0.95 = 0.05 mm.

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