Question

Which Of the following, formula is suitable for measuring the length of a rod by using a vernier caliper?

• A. $M.S.R+(V.C.D\times L.C)$
• B. $P.S.R–C.S.R\times L.C$
• C. $M.S.R–(V.C.D\times L.C)$
• D. $P.S.R+C.S.R\times L.C$

Answer 1

The correct option is A

$M.S.R+(V.C.D\times L.C)$

Length of rod using a vernier caliper

1. $\mathrm{MSR}$ is the main scale reading, $\mathrm{VCD}$ is the vernier caliper division, $\mathrm{LC}$ is the least count
2. The formula of the Length of the rod $=M.S.R.+(V.C.D.\times L.C).$

Hence, the correct option is (a).