Physics · Units and Measurements
In a typical vernier caliper, 50 divisions of the Vernier scale occupy 49 divisions on the main scale (where 1 MSD = 1 mm). While measuring the diameter of a rod, the main scale reading shows 24 mm and the 20th Vernier scale division coincides with a main scale division. What is the diameter of the rod?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 124.02 mm
- 224.2 mm
- 324.04 mm
- 424.4 mm✓
Correct answer
24.4 mm
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