PhysicsMedium156×since 2002Q8357If n main scale divisions coincide with (n + 1) vernier scale divisions. The least count of vernier callipers, when each centimetre on the main scale is divided into five equal parts, will be :A2n+1{2 \over {n + 1}}n+12 mmB5n+1{5 \over {n + 1}}n+15 mmC12n{1 \over {2n}}2n1 mmD15n{1 \over {5n}}5n1 mmCheck answerSkip