InterviewSolution
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InterviewSolution
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A meter washer has a hole of diameter `d_(1)` and external diameter `d_(2)`, where `d_(2)=3d_(1)`. On heating , `d_(2)` increases by `0.3%`. Then `d_(1)` will :-A. decreases by ` 0.1 %`B. decrease by `0.3%`C. increases by `0.1%`D. increase by `0.3%`. |
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Answer» Correct Answer - D Expansion of a metal is same as photographic enlargement `implies d_(1)` will increase by `0.3%` `implies d_(1) , 0.3%` |
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