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AP EAMCET · PHYSICS · Experimental Physics

N divisions on the main scale of a vernier calipers coincide with N+1 divisions of the vernier scale. If each division of main scale is a units, then the least count of the calipers is

  1. A a N
  2. B a
  3. C aN+1
  4. D NaN+1
Verified Solution

Answer & Solution

Correct Answer

(C) aN+1

Step-by-step Solution

Detailed explanation

It is given that N+1 Divisions on vernier scaleV.S.D.=N Divisions on main scale M.S.D. ⇒ 1 V.S.D.=NN+1M.S.D. Least count of vernier callipers L.C.=1 M.S.D.-1 V.S.D. ⇒  L.C.=a-aNN+1=aN+1 unit
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