The variation of length of two metal rods A and B with temperature is shown in the figure. Let α₁ and α₂ be their coefficients of linear expansion, respectively. Find α₁/α₂.

Question

G1 Physics · Accepted Answer

For a length-temperature graph, slope=αL₀. Using the values shown in the source figure gives α₁/α₂=2/3. Therefore option B.