Advertisements
Advertisements
प्रश्न
A dam has broader walls at the bottom than at the top. Give a reason.
Advertisements
उत्तर
To withstand the greater pressure of water which increases with increase in depth.
APPEARS IN
संबंधित प्रश्न
Why is it difficult to hold a school bag having a strap made of a thin and strong string?
State the units in which pressure is measured.
Fill in the blank with suitable word :
Force acting on a unit area is called...................
Fill in the blank with suitable word :
In order to sink in a fluid, the density of an object must be .................. than the ................ of the fluid.
A liquid exerts pressure in all directions.
Pressure inside a liquid increases with
Describe a suitable experiment to demonstrate that a liquid exerts pressure sideways also?
Describe an experiment to show that the liquid pressure at a point increases with the increase in height of the liquid column above that point.
Name an instrument used to measure the difference in the liquid pressure.
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.
