Question

${\textbf{Subject : Physics }}$

${\textbf{Chapter : Units and Measurements }}$


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Answer 1

.•♫•♬•[ welcome to the concept of error analysis ].•♫•♬•

✨ Absolute error :

The magnitude of the difference between the true value of the quantity and the individual measurement value is called absolute error of the measurement.

✨ mean or final Absolute error :

the arithmetic mean of the positive magnitudes of all the absolute errors is called mean absolute error.

✨ Relative error:

the ratio of the mean absolute error to the true value of the measurement quantity is called relative error.

✨ percentage error:

the relative error expressed in percent is called percentage error.

⏩ note : actual answer may be different because I take rounded off to 2 decimal places of values for simplification.

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