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Q. |
"The difference between the length of a certain brass rod and that of a steel rod is clamped to be constant at all temperatures". The above statement |
A. | can never be true |
B. | can be valid only for temperatures below 0?C |
C. | can be true provided their lengths are directly proportional to the linear coefficients of the material of the rod |
D. | can be true provided their lengths are directly proportional to the linear coefficients of the material of the rod |
E. | None of the above |
Answer» D. can be true provided their lengths are directly proportional to the linear coefficients of the material of the rod |
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