Advertisements
Advertisements
प्रश्न
Explain the following :
Two holes are made in a completely filled sealed tin can to take out oil from it .
Advertisements
उत्तर
There is no air inside a completely filled and sealed can. When a single hole is made to drain out the oil from the can, some of the oil will come out and due to that the volume of air above the oil will increase and hence the pressure of air will decrease. But if two holes are made on the top cover of the can, air outside the can will enter it through one hole and exert atmospheric pressure on the oil from inside along with the pressure due to oil column, and it will come out of the can from the other hole.
APPEARS IN
संबंधित प्रश्न
The atmospheric pressure at sea level is nearly
Give reason for the following:
Water does not run out of a dropper unless its rubber bulb is pressed.
Give reason for the following :
Two holes are made in a sealed oil tin to take out oil from it.
State two advantages of an aneroid barometer over a simple barometer.
How does the atmospheric pressure change with altitude? Draw an approximate graph to show this variation.
Briefly state the variations in the vertical distribution of pressure.
Distinguish between the following:
Isobars and Isotherms
Draw a simple diagram of a Fortin's barometer and state how it is used to measure the atmospheric pressure.
Why is it not advisable to use a fountain pen while travelling in an aeroplane?
Humans are sensitive even to a small variations in pressure.
