In a Vernier Callipers, n divisions of its main scale match with (n+1) divisions on its Vernier scale. Each division of the main scale is of a unit. Using the Vernier principle, calculate its least count.
A
a2n+1.
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B
an+1.
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C
a3n+1.
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D
a4n+1.
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Solution
The correct option is Aan+1. nMSD=(n+1)VSD⟶(i),1MSD=a unit ⟶(ii)⇒no units=(n+1) VSD ⇒1VSD=(nan+1)units