Q 11-01-180JEE MainJEE Main 2021 (18 Mar, Shift 2)Easy
The radius of a sphere is measured to be $(7.50 \pm 0.85)$ cm. Suppose the percentage error in its volume is $x$. The value of $x$, to the nearest integer, is ______.
Numerical value type. Enter your answer.
Answer: 34
$$\frac{\Delta V}{V}\times100 = 3\frac{\Delta r}{r}\times100 = 3\times\frac{0.85}{7.50}\times100 = 34\%$$
Solution by Sreeraj P, M.Sc Physics