"Errors , curve fitting and data analysis" — CSIR Net PYQ (Question 2)

A "Errors , curve fitting and data analysis" previous-year question (PYQ) from Electronics (CSIR Net). Read the question, check the correct answer, then practise the full topic.

Question 2 of 20 · 3.5 marks

The viscosity

η

of a liquid is given by Poiseuille's formula

η = \frac{π P a ^{4}}{8 I V}

. Assume that

l

and

V

can be measured very accurately, but the pressure

P

has an rms error of

1%

and the radius

a

has an independent rms error of

3%

. The rms error of the viscosity is closest to

1 $2%$
2 $4%$
3 $12%$
4 $13%$

Correct answer: Option 3

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