Question

During a measurement, for a measure value “B”, absolute error is obtained as “A”, what will be the relative error of measurement? *
B/A
(A+1)/B
(B+A)/A
A/B

Answer 1

Answer:

Explanation:

B/A

Answer 2

The relative error of the measurement will be A/B.

Here we are given that the value to be measured is 'B' therefore this will be called the actual value.

Now we know that the absolute error is the error in measuring the value.

Absolute error = Measured value - Expected value

It is given here that the absolute error is 'A'.

Now to find the relative error of the measurement we will use the formula

Relative error = absolute error / True value

Therefore the relative error will be

Relative error = A/B