MHT CET · Physics · Mathematics in Physics
The percentage error in the measurement of mass and speed of a particular body is \(3 \%\) and \(4 \%\) respectively. The percentage error in the measurement of kinetic energy is
- A 9 %
- B \(10 \%\)
- C \(11 \%\)
- D \(12 \%\)
Answer & Solution
Correct Answer
(C) \(11 \%\)
Step-by-step Solution
Detailed explanation
\( K = \frac{1}{2}mv^2 \) \( \frac{\Delta K}{K} \times 100\% = \frac{\Delta m}{m} \times 100\% + 2 \times \frac{\Delta v}{v} \times 100\% \)
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