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प्रश्न
The S.I. unit of density is ..........
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उत्तर
The S.I. unit of density is Kg m-3
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संबंधित प्रश्न
When does an object float or sink when placed on the surface of a liquid ?
The density of water is 1.0 g Cm-3. The density of iron is 7.8 × 10″3 g Cm-3. The density of mercury is 13.6 g Cm-3.
Answer the following:
Will a piece of iron float or sink in mercury?
State whether thrust is a scalar or vector?
Explain the following statement:
It is easier to cut with a sharp knife than with a blunt one.
What is meant by the term buoyancy?
Complete the following sentence :
A piece of wood is held under water. The upthrust on it will be ___________ the weight of the wood piece.
A homogeneous block floats on water (a) partly immersed (b) completely immersed. In each case state the position of centre of buoyancy B with respect to the centre of gravity G of the block.
A balloon filled with helium gas floats in a big closed jar which is connected to an evacuating pump. What will be your observation, if air from the jar is pumped out? Explain your answer.
The center of gravity of the floating body and the center of buoyance are in the same ______ line.
