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प्रश्न
State the laws of liquid pressure.
उत्तर
Laws of liquid pressure:
(i) Pressure at a point inside the liquid increases with the depth from its free surface.
(ii) In a stationary liquid, pressure is same at all points on a horizontal plane.
(iii) Pressure is same in all directions about a point in the liquid.
(iv) Pressure at same depth is different in different liquids. It increases with the increase in the density of liquid.
(v) A liquid seeks its own level.
संबंधित प्रश्न
What happens to the buoyant force as more and more volume of a solid object is immersed in a liquid ? When does the buoyant force become maximum ?
The weight of a body floating in a liquid is ........
What is meant by pressure? State its S.I. unit.
State whether pressure is a scalar or vector?
How does the liquid pressure on a diver change if:
the diver moves to the greater depth
Complete the following sentence :
Pressure at a point inside the liquid is ...................... To its depth.
Two spheres A and B, each of volume 100 cm3 is placed on water (density = 1.0 g cm-3). The sphere A is made of wood of density 0.3 g cm-3 and sphere B is made of iron of density 8.9 g cm-3.
- Find:
- The weight of each sphere, and
- The upthrust on each sphere.
- Which sphere will float? Give reason.
Complete the following sentence.
Mass = .................... × density
How is thrust different from pressure?
Consider the statement given below and choose the correct option.
Assertion: Water strider slides easily on the surface of the water.
Reason: Water strider experiences less buoyant force.
