Advertisements
Advertisements
प्रश्न
A piece of wood floats on water. The buoyant force on wood will be
विकल्प
zero
more than the weight of the wood piece
equal to the weight of the wood piece
less than the weight of the wood piece.
Advertisements
उत्तर
equal to the weight of the wood piece.
APPEARS IN
संबंधित प्रश्न
Define the term Density of a substance.
Describe an experiment to determine the density of the material of a coin.
For a given object, the buoyant force in liquids of different ______ is ______.
State whether thrust is a scalar or vector?
A simple U tube contains mercury to the same level in both of its arms. If water is poured to a height of 13.6 cm in one arm, how much will be the rise in mercury level in the other arm?
Given : density of mercury = 13.6 x 103 kg m-3 and density of water = 103 kg m-3.
A small block of wood is completely immersed in (i) water, (ii) glycerine and then released. In each case, What do you observe? Explain the difference in your observation in the two cases.
A body of mass 3.5 kg displaces 1000 cm3 of water when fully immersed inside it. Calculate:
- the volume of body,
- the upthrust on body and
- the apparent weight of body in water.
What do you mean by buoyancy?
A body will sink if the weight of the body is greater than the buoyant force.
The upward force that is caused due to the pressure difference in liquid (or fluid) is called ______.
