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Question 30105
JEE Physics · Easy

Errors and Measurements: Screw Gauge MCQ

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

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Screw GaugeEasyQuestion 30105

Question

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

Correct answer

0.01 mm

Explanation

LC = pitch / circular scale divisions = 0.5 / 50 = 0.01 mm.

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