JEE Physics · Hard

Errors and Measurements: Measurement — Advanced MCQ

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

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Measurement — AdvancedHardQuestion 30190

Question

The pitch of a screw gauge is doubled while keeping the number of circular divisions the same. The new least count is:
  1. A
    Halved
  2. B
    Doubled
    Correct
  3. C
    Same
  4. D
    Quadrupled

Correct answer

Doubled

Explanation

LC = pitch / circular divisions. If pitch doubles and divisions stay fixed, LC doubles.