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A metal washer has a hole of diameter d(...

A metal washer has a hole of diameter `d_(1)` and an external diameter `d_(2)` such that `d_(2)=3d_(1)`. If on heating `d_(2)` increases by 0.3% then `d_(1)`

A

decreases by 0.1%

B

decreases by 0.3%

C

increases by 0.1%

D

increases by 0.3%

Text Solution

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The correct Answer is:
D
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