The initial and final temperatures of water as recorded by an observer are (38.6 ± 0.2) and (82.3 ± 0.3). The rise in temperature with proper error limits is (a) (43.7 ± 0.2) (b) (43.7 ± 0.3) (c) (43.7 ± 0.1) (d) (43.7 ± 0.5)

Answer: (d). Rise = 82.3 - 38.6 = 43.7 In a difference, absolute errors add: 0.2 + 0.3 = 0.5 So the answer is (d) (43.7 ± 0.5).

The initial and final temperatures of water as recorded by an… | MHT CET 2025 (19 Apr, Shift 2)

Q37MHT CET 2025 · 19 APR · SHIFT 2Easy

Errors in Measurement

The initial and final temperatures of water as recorded by an observer are $(38.6 \pm 0.2)^\circ\text{C}$ and $(82.3 \pm 0.3)^\circ\text{C}$ . The rise in temperature with proper error limits is

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Answer: (d)

Rise $= 82.3 - 38.6 = 43.7^\circ\text{C}$
In a difference, absolute errors add: $0.2 + 0.3 = 0.5^\circ\text{C}$
So the answer is (d) $(43.7 \pm 0.5)^\circ\text{C}$ .

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