The correct option is D 4 %
We know that, for a solid heated to raise the temperature by ΔT
⇒Δ LL : Δ AA : Δ VV=1:2:3 ......(1)
Given, fractional change in volume of cylinder is ΔVV=0.06
From (1), the fractional change in surface area of the cylinder is given by
∴ The percentage increase in the value of curved surface area is ΔAA×100= 4 %
Thus, option (d) is the correct answer.