Advertisements
Advertisements
प्रश्न
Select the correct option.
The unit Nm2 is the unit of
पर्याय
force
pressure
thrust
momentum
Advertisements
उत्तर
pressure
APPEARS IN
संबंधित प्रश्न
A plastic cube is released into the water. Will it sink or come to the surface of the water?
Complete the following sentence :
Pressure is .................... in all directions about a point in a liquid.
Complete the following sentence :
Pressure of a liquid at a given depth is .................. To the density of the liquid.
A block of iron of mass 7.5 kg and of dimensions 12 cm × 8 cm × 10 cm is kept on a table top on its base of side 12 cm × 8 cm.
Calculate:
- Thrust and
- Pressure exerted on the table top
Take 1 kgf = 10 N.
Complete the following sentence :
Two balls, one of iron and the other of aluminium experience the same upthrust when dipped completely in water if _____________ .
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.
Is pressure a vector quantity?
Complete the analogy.
Downward force: Weight:: Upward force offered by liquid: _____
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.
What do you understand by the term “Buoyancy”.
