1.

The least count of vernier callipers is `0.1 mm`. The main scale reading before the zero of the vernier scale is `10` and the zeroth division of the vernier scale coincides with the main scale division. Given that each main scale division is `1mm`. The measured value should be expressed asA. `1 cm`B. `2 cm`C. `0.5 cm`D. `0.1 cm`

Answer» Correct Answer - A
Given, least count `(LC)=0.1mm`
main scale reading `=0`
vernier scale reading `=10`
Length measured with the vernier callipers =reading before the zero of vernier scale+number of vernier divisions coinciding with any main division `X` least count
`=10mm`
`=1cm`


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