Two capillary tubes of radius r but of lengths l_(1) and l_(2) are fitted in parallel to the bottom of a vessel. The pressure head is P. What should be the length of a single tube that can replace the two tubes so that the rate of flow is same as before

Two capillary tubes of radius r but of lengths l_(1) and l_(2) are fit

1.	Two capillary tubes of radius r but of lengths l_(1) and l_(2) are fitted in parallel to the bottom of a vessel. The pressure head is P. What should be the length of a single tube that can replace the two tubes so that the rate of flow is same as before
Answer» <html><body><p>`l_1 + l_2`<br/>`( <a href="https://interviewquestions.tuteehub.com/tag/1-256655" style="font-weight:bold;" target="_blank" title="Click to know more about 1">1</a>) /( l_1) + (1)/( l_2)`<br/>`( l_1 l_2)/( l_1 + l_2)`<br/>`(1) /( l_1 + l_2)`</p><a href="https://interviewquestions.tuteehub.com/tag/answer-15557" style="font-weight:bold;" target="_blank" title="Click to know more about ANSWER">ANSWER</a> :<a href="https://interviewquestions.tuteehub.com/tag/c-7168" style="font-weight:bold;" target="_blank" title="Click to know more about C">C</a></body></html>