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Question 5022
NEET Physics · Medium

Units & Measurements: Screw Gauge & Vernier MCQ

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Screw Gauge & VernierMediumQuestion 5022

Question

A screw gauge has 50 divisions on its circular scale and pitch 0.5 mm. Its least count is:
  1. A
    0.01 mm
    Correct
  2. B
    0.001 mm
  3. C
    0.1 mm
  4. D
    0.005 mm

Correct answer

0.01 mm

Explanation

Least count = Pitch / Number of divisions on circular scale = 0.5 mm / 50 = 0.01 mm.

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