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A pendulum's period is measured as 2.0 s with an uncertainty of ±0.1 s. What is
A pendulum's period is measured as 2.0 s with an uncertainty of ±0.1 s. What is the fractional error in the period?
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Practice Questions
1 question
Q1
A pendulum's period is measured as 2.0 s with an uncertainty of ±0.1 s. What is the fractional error in the period?
0.05
0.1
0.02
0.1
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Fractional error = (absolute error / measured value) = 0.1 / 2.0 = 0.05.
Questions & Step-by-step Solutions
1 item
Q
Q: A pendulum's period is measured as 2.0 s with an uncertainty of ±0.1 s. What is the fractional error in the period?
Solution:
Fractional error = (absolute error / measured value) = 0.1 / 2.0 = 0.05.
Steps: 6
Show Steps
Step 1: Identify the measured value of the pendulum's period, which is 2.0 seconds.
Step 2: Identify the absolute error, which is the uncertainty given as ±0.1 seconds.
Step 3: Calculate the fractional error using the formula: fractional error = (absolute error / measured value).
Step 4: Substitute the values into the formula: fractional error = 0.1 / 2.0.
Step 5: Perform the division: 0.1 divided by 2.0 equals 0.05.
Step 6: Conclude that the fractional error in the period is 0.05.
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