Question

N division on the main scale of a verniercalipers coincide with (N + 1) divisions of the vernier scale. If each division of main scale is x unit, then least count of the instrument is –

• A. (a) $\frac { \mathrm { x } } { \mathrm { N } }$
• A. (b) x
• A. (c) $\frac { \mathrm { x } } { \mathrm { N } + 1 }$
• A. (d) $\left( \frac { \mathrm { N } } { \mathrm { N } + 1 } \right) \mathrm { x }$

Answer 1

(c)

Sol. LC = $\frac { 1 \mathrm { MSD } } { \mathrm { N } + 1 }$ = $\frac { \mathrm { x } } { \mathrm { N } + 1 }$