MHT CET202519 Apr 2025Evening ShiftPhysicsMathematics in PhysicsActual
The initial and final temperatures of water as recorded by an observer are (38.6 0.2)^ C and (82.3 0.3)^ C . The rise in temperature with proper error limits is
Options
- A(43 7 0 2)^ C
- B(43 7 0 3)^ C
- C(43 7 0 1)^ C
- D(43 7 0 5)^ C
Correct answer
D. (43 7 0 5)^ C
Step-by-step solution
The temperature rise T = T₂ - T₁ is calculated from the measured temperatures T₁ = (38.6 0.2)^ C and T₂ = (82.3 0.3)^ C . The mean temperature difference is 82.3 - 38.6 = 43.7^ C . For subtraction operations, absolute uncertainties sum: ( T) = T₁ + T₂ = 0.2 + 0.3 = 0.5^ C . The temperature rise with uncertainty is (43.7 0.5)^ C , corresponding to option D. D