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Consequences of Atmospheric Pressure

A narrow glas...

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A narrow glass tube 80 cm long opens at both ends is half immersed in mercury now the top of the tube is closed and is taken out of mercury. A column of mercury 20cm long remains in the tube. Find Atmospheric pressure.

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Q. An open glass tube is immersed in mercury in such a way that a length of 8 cm extends above the mercury level. The open end of the tube is then closed and sealed and the tube is raised vertically up by additional 46 cm. What will be length of the air column above mercury in the tube now? (Atmospheric pressure

=

Q. An open glass tube is immersed in mercury in such a way that a length of

8 cm

extends above the mercury level. The open end of the tube is then closed and sealed and the tube is raised vertically up by an additional

46 cm

. What will be length of the air column above mercury in the tube now?

[Atmospheric pressure

= 76 cm of Hg

and assume temperature is constant]

Q. An open glass tube is immersed in mercury in such a way that a length of

8 cm

extends above the mercury level. The open end of the tube is then closed and sealed and the tube is raised vertically up by an additional

46 cm

. What will be length of the air column above mercury in the tube now? (Atomspheric pressure

= 76 cm

Q. A narrow tube of length one meter is lying horizontal, with a mercury column of length 10 cm at the center. Both the ends of the tube are closed and, contains air at atmospheric pressure. If now the tube is turned vertical,then find the downward displacement of the mercury column.

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