A. 0.25ms−²
B. 3.00ms−²
C. 4.00ms−²
D. 9.00ms−²
E. 16.00ms−²

Correct Answer:

Option B – 3.00ms−²

SEE ALSO  Metal rods of length 20m each are laid end to end to form a bridge at 25°C. What gap will be provided between consecutive rails for the bridge to withstand 75°C? [Linear expansivity of the material = 2.0 x 10^-5K‾¹]

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