state gov RPSC 2nd Grade Senior Teacher Mock Test Series 2025 Physics Units, Dimensions and Measurements Accuracy, precision of instruments and errors in measurement
If the radius of a sphere is measured to be r = (2 ± 0.02) cm then the surface area of the sphere will be:-
(take π = 3)
1
\(\left( 48\pm \frac{24}{25} \right)c{{m}^{2}}\)
2
\(\left( 48\pm \frac{25}{24} \right)c{{m}^{2}}\)
3
(48 ± 24) cm2
4
None
5
Question Not Attempted