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Prerna Yash Sawhney
Asked: 2022-11-01T23:49:04+05:30 In:

A steel meter scale is to be ruled so that millimeter intervals are accurate within about `5xx10^(-5)` mm at a certain temperature. The maximum temperature variation allowable during the ruling is (Coefficient of linear expansion of steel `=10xx10^(-6)K^(-1)`)
A. `2^(@)C`
B. `5^(@)C`
C. `7^(@)C`
D. `10^(@)C`

A steel meter scale is to be ruled so that millimeter intervals are accurate within about `5xx10^(-5)` mm at a certain temperature. The maximum temperature variation allowable during the ruling is (Coefficient of linear expansion of steel `=10xx10^(-6)K^(-1)`)
A. `2^(@)C`
B. `5^(@)C`
C. `7^(@)C`
D. `10^(@)C`
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  1. Correct Answer – b

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