3- The main scale of a vernier callipers has n divisions-cm- n divisions of the vernier scale coincide with -n-1- divisions of main scale- The least count of the vernier callipers is- 1 -n - 1-n-1- cm -b- 4cm -is-1- 1 cm -d- 1 - cm n-n-1- -Odisha NEET 2019-

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3. The main scale of a vernier callipers has n divisions/cm. n divisions of the vernier scale coincide with (n-1) divisions of main scale. The least count of the vernier callipers is, 1 (n + 1)(n-1) cm (b) 4cm -is-1: 1 cm (d) 1 - cm n(n+1) (Odisha NEET 2019)