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The ratio of lengths of two rods is 1 :2...

The ratio of lengths of two rods is `1 :2` and the ratio of coefficient of expansions is `2:3`. The first rod is heated through `60^(@) C`. Find the temperature through which the second rod is to be heated so that its expansion is twice that of first is

A

`60^(@) C`

B

`40^(@) C`

C

`30^(@) C`

D

`10^(@) C`

Text Solution

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The correct Answer is:
B
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