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MHT CET 2025 (26 Apr, Shift 1) · Errors in Measurement

Errors in Measurement question from MHT CET 2025 (26 Apr, Shift 1)

Q39MHT CET 2025 · 26 APR · SHIFT 1Easy

Errors in Measurement

The error in the measurement of length and mass of a cube is 3%3\% and 4%4\% respectively. The error in the measurement of density will be

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Answer: (b)

  1. Density of a cube ρ=ML3\rho = \frac{M}{L^3}, so Δρρ=ΔMM+3ΔLL\frac{\Delta\rho}{\rho} = \frac{\Delta M}{M} + 3\frac{\Delta L}{L}
  2. =4%+3(3%)=13%= 4\% + 3(3\%) = 13\%
  3. So the answer is (b) 13%13\%.
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