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प्रश्न
Why does it happen?
The wall of a dam is broad at its base.
उत्तर
We know the pressure of liquid increases with depth. So, the wall of a dam is made broader at its base so that it is able to withstand the heavy pressure exerted by the river water.
संबंधित प्रश्न
State the units in which pressure is measured.
Fill in the blank with suitable word :
In fluids (liquids and gases), pressure acts in....................directions, and pressure.................as the depth increases.
Fill in the blank with suitable word :
If the area of a snow shoe is five times....................... than the area of an ordinary shoe, then the pressure of a snow shoe on the snow is five times...............
Describe an experiment to show that a liquid exerts pressure at the bottom of the container in which it is kept.
Describe a suitable experiment to demonstrate that a liquid exerts pressure sideways also?
State two factors on which the pressure at a point in a liquid depends.
Describe an experiment to show that liquid pressure depends on the density of liquid.
An object is put one by one in three liquids having different densities. The object floats with `1/9, 2/11` and `3/7` parts of their volumes outside the liquid surface in liquids of densities d1, d2 and d3 respectively. Which of the following statement is correct?
A liquid flowing out of a very small opening of a tube or tap comes out in the form of fine drops and not as a continuous stream. Why?
How will you calculate fluid pressure?
