An aluminium - alloy rod has a length of...

An aluminium - alloy rod has a length of 10.000 cm at `20.000^@C ` and a length of at the oiling point of water . (a) what is the length of the rod at the freezing point of water ? What is the temperature if the length of the rod is 10.009 cm?

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The correct Answer is:

(a) 9.995 cm ; (b) `56^@C`

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