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MHT CET 2026 (20 Apr, Shift 1) · Errors in Measurement

Errors in Measurement question from MHT CET 2026 (20 Apr, Shift 1)

Q22MHT CET 2026 · 20 APR · SHIFT 1Medium

Errors in Measurement

The percentage error in the measurement of mass of a body and its speed are $0.73\%$ and $1.84\%$ respectively. The percentage error in the measurement of its momentum and kinetic energy are respectively

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Answer: (b)

Momentum $p = mv$ : $\frac{\Delta p}{p} = 0.73\% + 1.84\% = 2.57\%$
Kinetic energy $K = \frac{1}{2}mv^2$ : $\frac{\Delta K}{K} = 0.73\% + 2(1.84\%) = 4.41\%$
So the answer is (b) $2.57\%,\ 4.41\%$ .

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