The coefficient of linear expansion of iron is 1.1 × 10^-5 per K. An iron is 10 m long at 27 °C.
The coefficient of linear expansion of iron is 1.1 × 10-5 per K. An iron is 10 m long at 27 °C. Length of the rod will be decreased by 1.1 mm when the temperature of the rod changes to
(A) 0°C
(B) 10 °C
(C) 17 °C
(D) 20 °C
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