One main scale division |Measurement & Error| JEE-MAIN 2022

JEE MAIN 2021

16-03-2021 S1

Question

One main scale division of a vernier callipers is ' $a$ ' cm and $n$th division of the vernier scale coincide with $(n-1)^{\text {th }}$ division of the main scale. The least count of the callipers in $m m$ is:

Select the correct option:

$\frac{10 n a}{(n-1)}$

$\frac{10 a}{(n-1)}$

$\left(\frac{n-1}{10 n}\right) a$

$\frac{10 a}{n}$

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution

Solution not available

Question Tags

JEE Main

Physics

Easy

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