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Question 30129
JEE Physics · Medium

Errors and Measurements: Vernier Zero Error MCQ

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Vernier Zero ErrorMediumQuestion 30129

Question

A vernier caliper has a positive zero error of 0.04 cm. A reading shows MSR = 3.2 cm and 6th VSD coincides (LC = 0.01 cm). Corrected reading is:
  1. A
    3.26 cm
  2. B
    3.22 cm
    Correct
  3. C
    3.30 cm
  4. D
    3.24 cm

Correct answer

3.22 cm

Explanation

Observed = 3.2 + 6×0.01 = 3.26 cm. Corrected = 3.26 − 0.04 = 3.22 cm (subtract positive zero error).

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