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

A 10 cm column of air is trapped by a column of mercury, 8 cm long, in

1.	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» `(76 XX 68)/10 ` 0 cm `(76 xx 10)/(84) ` `(76 xx 10)/84 ` Solution :`underset(("horrizontal"))(p_1l_1) = underset(("VERTICALLY down"))(p_2l_2)` `76 xx 10 = (76 - 8) l_2 implies l_2 = (76 xx 10)/(68) cm`.