Question

What ia fractional error

Answer 1

fractional error is defined as the ratio of mean absolute error to the mean value of the quantity measured.it is also known as relative error.

Answer 2

Your answer is --

Suppose any physical quantity P and it's error is ∆P .

So, ∆P/P is known as it's fractional error .

or


◆ ratio of error of any physical quantity to true value of that physical quantity is called fractional error that physical quantity



Let , take an example

The radius if circle is (7±0.7)cm . Find fractional error of its concumferenc

▶▶ Concumference of circle

= 2πr = 2×22/7×7

= 44cm

so , it's fractional error is

∆C/C = (∆r/r)

=> ∆C/C = 0.7/7 = 0.1

【 Hope it helps you 】