A copper rod of length 1 m is initially at room temperature. If the temperature of the rod is increased by 100 °C, what will be the change in length of the rod? (Given linear thermal expansion coefficient of Cu is 17 x 10⁻⁶ / °C)
0.17 mm
1.7 mm
0.17 cm
1.7 cm
Answer is Wrong!
Answer is Right!
This question was previously asked in
UPSC Geoscientist – 2021
ΔL = 1000 mm * (17 x 10⁻⁶ / °C) * 100 °C
ΔL = 1000 * 17 * 10⁻⁶ * 100 mm
ΔL = 1700000 x 10⁻⁶ mm
ΔL = 1.7 mm.