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A student measures the temperature of water as 25°C with an uncertainty of ±0.5°

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Question: A student measures the temperature of water as 25°C with an uncertainty of ±0.5°C. What is the minimum temperature?

Options:

  1. 24.5°C
  2. 25.0°C
  3. 25.5°C
  4. 26.0°C

Correct Answer: 24.5°C

Solution: 

Minimum temperature = Measured value - Uncertainty = 25.0 - 0.5 = 24.5°C.

A student measures the temperature of water as 25°C with an uncertainty of ±0.5°

Practice Questions

Q1
A student measures the temperature of water as 25°C with an uncertainty of ±0.5°C. What is the minimum temperature?
  1. 24.5°C
  2. 25.0°C
  3. 25.5°C
  4. 26.0°C

Questions & Step-by-Step Solutions

A student measures the temperature of water as 25°C with an uncertainty of ±0.5°C. What is the minimum temperature?
  • Step 1: Identify the measured temperature, which is 25°C.
  • Step 2: Identify the uncertainty, which is ±0.5°C.
  • Step 3: To find the minimum temperature, subtract the uncertainty from the measured temperature.
  • Step 4: Perform the calculation: 25°C - 0.5°C = 24.5°C.
  • Step 5: The minimum temperature is 24.5°C.
  • Measurement and Uncertainty – Understanding how to apply uncertainty to measured values to determine possible ranges.
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