Physics-Vernier Caliper
NEET Physics Vernier Caliper MCQ Question
Type: MCQ-numerical-Easy-Class 12
If a Vernier caliper has 20 Vernier scale divisions (VSD) coinciding with 19 main scale divisions (MSD) and each MSD is 1 mm, what is its least count?
A
0.05 mm
B
0.10 mm
C
0.15 mm
D
0.20 mm
Correct Answer
Option A
Detailed Explanation
The least count of a Vernier caliper is calculated as the difference between one main scale division and one Vernier scale division. Here, 20 VSD coincide with 19 MSD, so the least count is (1 mm - 19/20 mm) = 0.05 mm.
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