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A piece of steel has a length of 30cm at...

A piece of steel has a length of 30cm at `15^(@)` C At `90^(@)` C its length increases by 0.027 cm. Its coefficient of linear expansion is

A

`15 xx 10^(- 6) //^(@) C `

B

`12 xx 10^(-6) //^(@) C `

C

`15 xx 10^(-6)//^(@) C `

D

`20 xx 10^(-6)//^(@) C `

Text Solution

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The correct Answer is:
B
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