Question

In a vernier callipers, smallest division on the main scale is 1mm, while the vernier scale have 20 divisions. When fixed jaw touches with movable jaw, zero of vernier scale lies on the right of the zero of the main scale and 15th division of vernier scale coincides with any division of main scale. What is the type of zero error and its value?

Answer 1

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Answer 2

Explanation:

$ANSWER \:$

Least count of vernier scale is the difference between one main scale division and vernier scale division.

LC=1MSD−1VSD

LC=1MSD - 16/20

LC= 4/20 MSD

LC= 4/20 ×1mm .....................(given)

LC=0.2mm