PHYSICS · Subjective · CBSE · Physics · Thermal Properties of Matter · Thermal Properties of Matter
Problem
A brass rod is exactly 1.000m long at 20∘C. It is first heated to 100∘C and then cooled to −10∘C. Assuming its coefficient of linear expansion remains constant at 1.9×10−5K−1, calculate:
(i) the length of the rod at 100∘C,
(ii) its final length at −10∘C,
(iii) the net change in length from the original 20∘C length.