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If a length is measured as 30.0 cm with an uncertainty of ±0.2 cm, what is the m

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Question: If a length is measured as 30.0 cm with an uncertainty of ±0.2 cm, what is the maximum possible error?

Options:

  1. 0.1 cm
  2. 0.2 cm
  3. 0.3 cm
  4. 0.4 cm

Correct Answer: 0.2 cm

Solution: 

Maximum possible error is equal to the uncertainty, which is ±0.2 cm.

If a length is measured as 30.0 cm with an uncertainty of ±0.2 cm, what is the m

Practice Questions

Q1
If a length is measured as 30.0 cm with an uncertainty of ±0.2 cm, what is the maximum possible error?
  1. 0.1 cm
  2. 0.2 cm
  3. 0.3 cm
  4. 0.4 cm

Questions & Step-by-Step Solutions

If a length is measured as 30.0 cm with an uncertainty of ±0.2 cm, what is the maximum possible error?
  • Step 1: Understand what uncertainty means. It tells us how much the measured value could be off.
  • Step 2: Look at the given measurement, which is 30.0 cm.
  • Step 3: Identify the uncertainty, which is ±0.2 cm.
  • Step 4: Realize that the maximum possible error is the same as the uncertainty.
  • Step 5: Conclude that the maximum possible error is ±0.2 cm.
  • Measurement and Uncertainty – Understanding how to interpret and apply uncertainty in measurements.
  • Maximum Possible Error – Recognizing that the maximum possible error is defined by the uncertainty of the measurement.
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