Q28 of 44 Page 9

The Vernier scale of a travelling microscope has 50 divisions which coincide with 49 main scale divisions. If each main scale division is 0.5 mm, calculate the minimum inaccuracy in the measurement of distance.

Given:


Number of Vernier scale divisions (VSD) = 50


Number of Main scale divisions (MSD) = 49


Least count of main scale = 0.5 mm


As per the question 50 VSD coincide with 49 MSD, therefore




The minimum accuracy in measurement is given as





But, 1 MSD = 0.5 mm



Therefore, the minimum accuracy in measurement is 0.01 mm


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