(A) Iron (X)
(B) Copper ()
(C) Rubber (X)
(D) Nickel (X)
Answers: Copper has a negative co-efficient of linear expansion .
(A) Iron (X)
(B) Copper ()
(C) Rubber (X)
(D) Nickel (X)
Answers: Copper has a negative co-efficient of linear expansion .
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