A vernier callipers have 1 mm marks on the main scale. It has 20 equal divisions on the vernier scale which match with 16 main scale divisions. Calculate the least count for this vernier.

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Solution

Least may be calculated as ratio between smallest division on main scale by number of division on vernier scale.
So, 20 divisions of vernier scale = 16 divisions of main scale.
Therefore, 1 VSD = 16/20 = 0.8 mm
Also Least count = 1MSD – 1VSD
= 1 mm – 0.8 mm
= 0.2 mm.

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A vernier callipers have 1 mm marks on the main scale. It has 20 equal divisions on the vernier scale which match with 16 main scale divisions. Calculate the least count for this vernier.

Least may be calculated as ratio between smallest division on main scale by number of division on vernier scale.So, 20 divisions of vernier scale = 16 divisions of main scale.Therefore, 1 VSD = 16/20 = 0.8 mmAlso Least count = 1MSD – 1VSD = 1 mm – 0.8 mm = 0.2 mm.

Least may be calculated as ratio between smallest division on main scale by number of division on vernier scale.
So, 20 divisions of vernier scale = 16 divisions of main scale.
Therefore, 1 VSD = 16/20 = 0.8 mm
Also Least count = 1MSD – 1VSD
= 1 mm – 0.8 mm
= 0.2 mm.