In an experiment to determine the coefficient of viscosity of a liquid using the formual eta=(piPr^(4))/(8l Q) the radius of the capillary tube was measured to be 0.41 mm using an instrument of least count 0.001 cm, length l was measured usinga metre scale as 15 cm. The percentae error in the pressure difference is 0.4% and the percentage error in the volume of the liquid flow out per second Q is 0.3% what is the maximum percentage error in the coefficient of viscosity?

In an experiment to determine the coefficient of viscosity of a liquid

1.	In an experiment to determine the coefficient of viscosity of a liquid using the formual eta=(piPr^(4))/(8l Q) the radius of the capillary tube was measured to be 0.41 mm using an instrument of least count 0.001 cm, length l was measured usinga metre scale as 15 cm. The percentae error in the pressure difference is 0.4% and the percentage error in the volume of the liquid flow out per second Q is 0.3% what is the maximum percentage error in the coefficient of viscosity?
Answer» <html><body><p><br/></p>Solution :`V=pid^(<a href="https://interviewquestions.tuteehub.com/tag/2-283658" style="font-weight:bold;" target="_blank" title="Click to know more about 2">2</a>)h//4`. % <a href="https://interviewquestions.tuteehub.com/tag/erron-2619318" style="font-weight:bold;" target="_blank" title="Click to know more about ERRON">ERRON</a> in `V=2(Deltad//d)+(Deltah//h)`(i) using <a href="https://interviewquestions.tuteehub.com/tag/scale-1195529" style="font-weight:bold;" target="_blank" title="Click to know more about SCALE">SCALE</a> `DeltaV//V=(2xx0.1//2.4)+(0.1//10-5)=9.28%` (ii) Using <a href="https://interviewquestions.tuteehub.com/tag/calipers-412402" style="font-weight:bold;" target="_blank" title="Click to know more about CALIPERS">CALIPERS</a> `DeltaV//V=(2xx0.01//4)+(0.01//10.5)=0.9%`.</body></html>