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A 10 cm column of air is trapped by a column of mercury, 8 cm long, in a capillary tube horizantally fixed as shown below, at 1 atm pressure. When the tube is held at certain angle theta^(@), with open end up, the weight of Hg is borne partially by the gas. Vertical Height of Hg is a measure of additional pressure on gas: The length of air coloumn.when the tube is fixed vertically with opend end down at same temperature is |
Answer» <html><body><p>`(76 <a href="https://interviewquestions.tuteehub.com/tag/xx-747671" style="font-weight:bold;" target="_blank" title="Click to know more about XX">XX</a> <a href="https://interviewquestions.tuteehub.com/tag/68-331600" style="font-weight:bold;" target="_blank" title="Click to know more about 68">68</a>)/10 `<br/>0 cm <br/>`(76 xx 10)/(84) `<br/>`(76 xx 10)/84 `</p>Solution :`underset(("horrizontal"))(p_1l_1) = underset(("<a href="https://interviewquestions.tuteehub.com/tag/vertically-3260386" style="font-weight:bold;" target="_blank" title="Click to know more about VERTICALLY">VERTICALLY</a> down"))(p_2l_2)` <br/> `76 xx 10 = (76 - 8) l_2 implies l_2 = (76 xx 10)/(68) cm`.</body></html> | |