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प्रश्न
A pupil determines the velocity of sound as 320 ms−1. If the actual velocity of sound is 332 ms−1, calculate the percentage error.
उत्तर
Velocity of sound determined by pupil = V1 = 320 ms−1
Actual value of velocity of sound = V2 = 332 ms−1
Absolute error = V2 – V1 = 332 – 320 = 12 ms−1
Percentage error = `"Absolute error"/"Actual value"xx100`
= `12/332xx100`
= 3.61%
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