Quiz ( 4 ) 2nd sec - Barometer and manometer

From the oppossite graph if the atmospheric pressure = 0.75 m.Hg then the pressure of the enclosed gas is
70 Torr
80 torr
800 Torr
700 Torr
Two mercucic barometer were placed on the same level if the cross-sectional area of the first is 2 cm and the cross-sectional area of the other is 6 cm then the ratio between the height of mercury column in the two barometers is
1:1
1:3
3 : 1
1 : 6
From the oppossite graph if the pressure of gas in container X is 76 cm.Hg then pressure of gas Y is
66 cm.HG
76 cm.Hg
96 cm.Hg
86 cm.Hg
From the oppossite graph if the pressure difference between the encloased gas and the atmospheric pressure is 40 cm.Hg then the height of mercury is
40 cm
60 cm
156
36
From the oppossite graph the pressure of the enclosed gas is ..... cm.Hg
26
76
50
126
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