ICSE Class 9 Answered
In a vernier callipers,there are 10 divisions on the vernier scale and 1 cm on the main scale is divided in 10 parts. While measuring a length , the zero of the vernier lies just ahead of 1.8 cm mark and 4th division of vernier coincides with a main scale division.
(a) find the length.
(b) if zero error of vernier callipers is -0.02 cm, what is the correct length.
Asked by rajkumarithakur1981 | 08 Nov, 2019, 06:21: PM
Expert Answer
Least count = 0.01 cm
Length = main scale reading + ( vernier scale reading × Least Count ) = 1.8 + 4 × 0.01 = 1.84 cm
true length = measured length - zero error = 1.84 - (-0.02) = 1.86 cm
Answered by Thiyagarajan K | 08 Nov, 2019, 07:58: PM
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