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Question 5023
NEET Physics · Medium

Units & Measurements: Screw Gauge & Vernier MCQ

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Screw Gauge & VernierMediumQuestion 5023

Question

A screw gauge with no zero error reads 2 mm on the main scale and 30 circular divisions. If its least count is 0.01 mm, what is the thickness?
  1. A
    2.30 mm
    Correct
  2. B
    2.03 mm
  3. C
    23.0 mm
  4. D
    0.230 mm

Correct answer

2.30 mm

Explanation

Thickness = Main scale reading + (CSR × LC) = 2 mm + (30 × 0.01 mm) = 2 + 0.30 = 2.30 mm.

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