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If n^(th) division of main scale coincid...

If `n^(th)` division of main scale coincides with `(n + 1)^(th)` divisions of vernier scale. Given one main scale division is equal to 'a' units. Find the least count of the vernier.

A

`(a)/(n+1)`

B

`(n+1)/(a)`

C

`(n)/(a)`

D

`n`

Text Solution

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The correct Answer is:
A
`rho=(m)/(v)`
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