Question

The least count of vernier callipers is 0.01 cm and its zero error is + 0.03 cm. while measuring the length of a rod, the main scale reading is 3.2 cm and fifth division on vernier is in line with a marking on the main scale. calculate the length of the rod.


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Answer 1

Answer:

Length of the rod = observed reading - zero error

=MSR+(V.C×L.C)−zeroerror

=4.6+(6×0.01)−[−0.03]

=(4.6+0.06)+(0.03)

=4.66+0.03

=4.69cm

Answer 2

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Length of the rod = observed reading - zero error

=MSR+(V.C×L.C)−zeroerror

=4.6+(6×0.01)−[−0.03]

=(4.6+0.06)+(0.03)

=4.66+0.03

=4.69cm

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