Physics And Measurement Question 165
Question: The percentage errors in the measurement of mass and speed are 2% and 3% respectively. How much will be the maximum error in the estimation of the kinetic energy obtained by measuring mass and speed
Options:
A) 11%
B) 8%
C) 5%
D) 1%
Show Answer
Answer:
Correct Answer: B
Solution:
$ E=\frac{1}{2}mv^{2} $
% Error in K.E. = % error in mass + 2 × % error in velocity = 2 + 2 × 3 = 8 %
