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,
A. \(\frac{1}{n(n+1)}\) cm
B. \(\frac{1}{(n+1)(n-1)}\) cm
C. \(\frac{1}{n}\) cm
D. \(\frac{1}{n^{2}}\) cm
Answer:D
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,
A. \(\frac{1}{n(n+1)}\) cm B. \(\frac{1}{(n+1)(n-1)}\) cm C. \(\frac{1}{n}\) cm D. \(\frac{1}{n^{2}}\) cm