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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

`10^2`

B

`10^(-2)`

C

`10^(-3)`

D

`10^(-4)`

Text Solution

Verified by Experts

The correct Answer is:
D
`rho = (rho_0)/(1 + gamma Delta T)`
`rArr 9.7 = (10)/(1 + 3 alpha xx 100)`
`rArr alpha = 1.031 xx 10^(-4) ~~ 10^(-4)`
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