JEE Main 2024 Physics question
If 50 Vernier divisions are equal to 49 main scale divisions of a traveling microscope and one smallest reading of main scale is 0.5 mm, the Vernier constant of traveling microscope is
Answer: (A)
Solution
MSD = 0.5 mm and 50 VSD = 49 MSD, so the vernier constant = MSD − VSD = MSD/50 = 0.5/50 = 0.01 mm.