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प्रश्न
Distinguish between density and relative density.
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उत्तर
| Sr. No. | Density | Relative density |
| 1. | It is the ratio of mass to volume. `D = ("Mass")/("Volume") = m/V` |
It is the ratio of the density of a substance to the density of water. |
| 2. | Units are g cm−3 or kg m−3 | It is a pure quantity. It has no units. |
| 3. | Density in kg m−3 = R.D × 1000 | R.D. = Density in g cm−3 `R.D. = ("Density in kg cm"^-3)/1000` |
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संबंधित प्रश्न
State whether the following statement is true or false :
The buoyant force depends on the nature of object immersed in the liquid
Which of the following will sink or float on water? (Density of water = 1 g Cm-3)
(a) body A having density of 500 kg m-3
The S.I. unit of pressure is :
Define upthrust and state its S.I. unit.
Why is a force needed to keep a block of wood inside water?
A body will experience minimum upthrust when it is completely immersed in :
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.
Select the correct option.
The unit Nm2 is the unit of
Is pressure a vector quantity?
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.
