Q. The dimensions of a rectangular block measured with calipers having least count of 0.01 cm are 5 mm $\times$ 10 mm $\times$ 5 mm. The maximum percentage error in the measurement of the volume of the block is
A) 5$\%$
B) 10%
C) 15%
D) 20%
Explanation
Required percentage error $= 2 \times \frac{0.01}{15.12} \times 0 + \frac{0.001}{10.15} \times 10 = 4 + 1 = 5$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.