Pressure inside a Liquid and its Variation
Pressure inside a Liquid and its Variation
Pressure in liquids: Like solids, all liquids and gases (together called fluids), apply pressure. Unlike solids, the liquids do not have a definite shape. They take the shape of the containing vessel. Unlike solids the pressure in the liquids is not the thrust per unit area. It depends upon the depth (height) and the density of the liquid. Solids exert pressure on a surface due to their weight. Fluids also have weight. So, they also exert pressure on the base and walls of container in which they are enclosed. What happens when you fill a balloon with water? The walls of the balloon bulge outwards due to the pressure of the water inside. If you keep on filling water in the balloon, what do you think will happen? The balloon will burst because the pressure on the walls of the balloon will increase beyond what its walls can withstand.
Which of the following are correct : (a) Like solids, all liquids and gases (together called fluids), apply pressure. (b) Unlike solids, the liquids do not have a definite shape. | |||
| Right Option : C | |||
| View Explanation | |||
Which of the following are correct : (a) Unlike solids the pressure in the liquids is not the thrust per unit area. (b) Liquids take the shape of the containing vessel. (c) Liquids exert pressure on the base and walls of container in which they are enclosed. | |||
| Right Option : D | |||
| View Explanation | |||
Which of the following are correct : (a) Like solids, all liquids and gases (together called fluids), apply pressure. (b) Deep under the sea the pressure exerted by water is much greater than at the sea level. (c) Dams are made stronger and thicker at the bottom than at the top to withstand the high pressures at greater depths. | |||
| Right Option : D | |||
| View Explanation | |||
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