Question

If (B + 1) divisions on vernier scale of vernier
callipers coincide with B divisions on main scale.
The value of one main scale division is a then
least count of the vernier callipers, is

(1) alpha ^2 /(B+1)
(2) alpha/2(B+1)
(3) B/(alpha +1)
(4) alpha /(B +1)

Answer 1

Answer:

ans is 1

Explanation:

here (B+1)vsd=B msd

therefore 1vsd=B/(B+1)MSD

L.C=MSD -Vsd=B-B/(B+1)MSD

=B^2+B-B/B+1msd

=B^2/B+1msd .........here MSD =Alpha

alpha^2/B+1