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MHT CET 2025 (22 Apr, Shift 2) · Errors in Measurement

Errors in Measurement question from MHT CET 2025 (22 Apr, Shift 2)

Q41MHT CET 2025 · 22 APR · SHIFT 2Easy

Errors in Measurement

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

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Answer: (c)

$K = \frac{1}{2}mv^2$ , so $\frac{\Delta K}{K} = \frac{\Delta m}{m} + 2\frac{\Delta v}{v}$
$= 3\% + 2(4\%) = 11\%$
So the answer is (c) $11\%$ .

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