Q. A public park, in the form of a square, has an area of $(100 \pm 0.2)m^{2}$. The side of park is
A) $(10 \pm 0.01)$m
B) $(10 \pm 0.1)$m
C) $(10.0 \pm 0.1)$m
D) $(10.0 \pm 0.2)$m
Explanation
Percentage error inside $= \frac{1}{2}\left\lbrack \frac{0.2}{100} \times 100 \right\rbrack = 0.1$ Absolute error inside $= \frac{0.1}{100} \times 10 = 0.01$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.