Question

Question No. 125 The ratio of the length of an iron rod and an aluminum rod for which the difference in the length is independent of temperature is (Coefficient of linear expansion of iron and aluminum are 12 x 10-6/°C and 24 x 10-6 °C respectively) (A) 2:1 (B) 3:1 (C) 1:2 (D) 4:1​

Answer 1

Answer:

Correct option is A)

Explanation:

as we know the length is independent of temperature is (Coefficient of linear expansion of iron and aluminum are 12 x 10-6/°C and