A composite rod made of copper (1.8 10(-5) K(-1)) and steel ( =1.2 10( – McqOptions

MCQOPTIONS

1.	A composite rod made of copper (1.8 10^(-5) K^(-1)) and steel ( =1.2 10^(-5) K^(-1)) is heated. Then ___________
A.	It bends with steel on concave side
B.	It bends with copper on concave side
C.	It does not expand
D.	Data is insufficient
Answer» B. It bends with copper on concave side

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