Question

A rectangular block is heated from $0^0$C to ${1000}^0$C. The percentage increase in its length is 0.2%. What is the percentage increase in its volume?

• A. 0.6%
• B. 0.10%
• C. 0.2%
• D. 0.4%

Answer 1

The correct option is A 0.6%

As
$\therefore$ $\frac{△V\times 100}{v}$ = 3$\frac{△L\times 100}{L}$
= 3 $\times$ 0.2 % = 0.6%