This question contains Statement-1 and Statement-2. Of the four choices given after the statements,choose the one that best describes the two statements.

Statement-1: The temperature dependence of resistance is usually given as R = R_o(1 + α∆t). The resistance of a wire changes from 100 Ω to 150 Ω when its temperature is increased from 27^o C to 227^o C. This implies that 3^o 2.5 10 / C − α= ×.
Statement 2: R = Ri(1 + α∆T) is valid only when the change in the temperature ∆T is small and ∆R =(R - R_o) << R_o.

• Statement-1 is true, Statement-2 is false.

• Statement-1 is true, Statement-2 is true; Statement-2 is the correct explanation of Statement-1.

• Statement-1 is true, Statement-2 is true; Statement-2 is not the correct explanation of Statement-1.

• Statement-1 is false, Statement-2 is true.