The coefficient of linear expansion ′α′ of a rod of length 2m varies with the distance x from the end of the rod as α=α0+α1x where α0=1.76×10⁻⁵⁻¹ and α1=1.2×10⁻⁶m⁻¹⁻¹. The increase in the length of the rod, when heated through 100 is :-
a. 2cm
b. 3.76mm
c. 1.2mm
d. None of these
