A rod of length 40 cm has the coefficient of linear expansion \alpha_1 = 6 × 10^{−6} /°C. Another rod of lengthl has the coefficient of linear expansion \alpha_2 = 4 × 10^{−6} /°C. If the difference in length of the two rodsalways remain same at all temperatures, then the value of l is

JEE Mains Model Paper 19

Question : 15 of 90

Marks: +1, -0

A rod of length 40 cm has the coefficient of linear expansion α1 = 6 × 10−6 /°C. Another rod of lengthl has the coefficient of linear expansion α2 = 4 × 10−6 /°C. If the difference in length of the two rodsalways remain same at all temperatures, then the value of l is

26 cm
60 cm
80 cm
32 cm

Validate

Go to Question:

Prev Question

Next Question