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The density of a substance at 0^(@)C is ...

The density of a substance at `0^(@)C` is `10 g//c c` and at `100^(@)C`, its density is `9.7 g//c c`. The coefficient of linear expansion of the substance is

A

`0.0001.^(@)C^(-1)`

B

`0.001.^(@)C^(-1)`

C

`0.00001.^(@)C^(-1)`

D

`0.1 .^(@)C^(-1)`

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