Q. The length, breadth and thickness of a block is measured to be 50 cm, 2.0 cm and 1.00 cm. The percentage error in the measurement of volume is
A) 0.8 %
B) 8%
C) 10%
D) 12.5%
Explanation
Percentage error in length $= \frac{1}{50} \times 100 = 2$ Percentage error in breadth $= \frac{0.1}{2.0} \times 100 = 5$ Percentage error in thickness$= \frac{0.1}{1.00} \times 100 = 1$ Percentage error in volume$= 2 + 5 + 1 = 8$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.