A 10 cm column of air is trapped by a column of mercury, 8 cm long, in a capillary tubehorizontally fixed as shown below, at 1 atm pressure. When the tube is held atcertain 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 column, when the tube is fixed vertically at the same temperature with open end up 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 tubehorizontally fixed as shown below, at 1 atm pressure. When the tube is held atcertain 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 column, when the tube is fixed vertically at the same temperature with open end up is .
Answer» `(76 XX 84)/10 cm` `(76 xx 10)/84 cm` `(84 xx 10)/76 cm` `(76 xx 10)/(84) cm` SOLUTION :Boyle.s LAW , `P_1 V_1 = P_LV_L (or) P_1L_1 = P_2l_2` `implies 76 xx 10 - (76_1 + 8) l_2 implies l_2 = (76 xx 10)/(84) cm`