Home
Class 9
PHYSICS
The left arm of a manometer is connected...

The left arm of a manometer is connected to a container containing gas 'X' and the mercury level in the right arm is raised by 2 cm. Now without disconnecting the container of X, the right arm of the manometer is connected to another container containing gas 'Y' and the mercury level in the right arm is pushed down by 5 cm. Find the pressure exerted by the gases 'X' and 'Y'.

Text Solution

Verified by Experts

When the left arm of the manometer is connected to the container of gas X, mercury in the right arm is raised by 2 cm.
`:.` the mercury in the left arm is pushed down by 2 cm and the fifference in the mercury level in both the arms = 4cm
`:.` the pressure of gas X=atmospheric pressure + pressure due to 4 cm of mercury column = 80 cm of Hg.
When the right arm is connected to the container of gas Y, mercury in the right arm is pushed down by 5 cm
`:.` The difference in the levels of mercury column in both the arms = 6 cm.
Thus, pressure of Y = pressure of X+pressure due to 6 cm of mercury = 80 cm of Hg+6 cm of Hg = 86 cm of Hg
Promotional Banner

Topper's Solved these Questions

  • HYDROSTATICE

    PEARSON IIT JEE FOUNDATION|Exercise LEVEL 3|5 Videos

  • HYDROSTATICE

    PEARSON IIT JEE FOUNDATION|Exercise LEVEL 3 UNDERSTANDING BASED QUESTION|5 Videos

  • HYDROSTATICE

    PEARSON IIT JEE FOUNDATION|Exercise LEVEL 2|13 Videos

  • HEAT

    PEARSON IIT JEE FOUNDATION|Exercise All Questions|115 Videos

  • LIGHT

    PEARSON IIT JEE FOUNDATION|Exercise Level 3|10 Videos

Similar Questions

Explore conceptually related problems

When one limb of a manometer is connected to a container filled with a gas, the level of the mercury in the other limb rises by 'h' cm. Then the pressure of the gas in the container is 76+h cm of Hg.

A manometer is connected to a gas containing bulb. The level of mercury in open arm is 2.6 cm lower than that in the other arm of the manometer. What is the pressure of the gas if the atmospheric pressure is 752 mm Hg?

A manometer is connected to gas container. Then the mercury level rises by 2 cm in the arm of the manometer which is not connected to the container. If the atmospheric pressure is 76 cm of mercury, then the pressure of the gas is ________ cm of mercury.

One of the limbs of a mercury manometer is connected to a gas cylinder. The mercury level in the limb connected to the gas cylinder is 10 cm higher than that in the other limb. Then the gauge pressure of the gas is _______ cm of Hg.

A manometer tube contains a liquid of density 4xx10^(3) kg m^(-3) . When connected to a vessel containing a gas, the liquid level in the other arm of the tube is higher by 20 cm. When connected to another sample of enclosed gas, the liquid level in the other arm of the manometer tube falls 8 cm below the liquid level in the first arm. Which of the two samples exerts more pressure and by what amount ?

Pressure of a gas enclosed in a container can be measured using a manometer.