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प्रश्न
Why does it happen?
The wall of a dam is broad at its base.
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उत्तर
We know the pressure of a liquid increases with depth. So, the wall of a dam is thicker at its base to withstand the heavy pressure exerted by river water.
संबंधित प्रश्न
Fill in the blank with suitable word :
In fluids (liquids and gases), pressure acts in....................directions, and pressure.................as the depth increases.
Describe an experiment to show that liquid pressure depends on the density of liquid.
Liquid pressure decreases with the decrease of depth.
Viscosity depends on the pressure of a liquid.
Describe an experiment to prove that the pressure in a liquid increase with depth.
The pressure at the bottom of a tank containing liquid does not depend upon the ______.
Figure shows a container filled with water. Which of the following statements is correct about pressure of water?
Water (or) liquids exert pressure on ______.
If the volume of the object is above the water surface, then the object is less dense.
Assertion (A): The force acting on the surface of a liquid at rest, under gravity, in a container is always horizontal.
Reason (R): The forces acting on a fluid at rest have to be normal to the surface.
