Advertisements
Advertisements
प्रश्न
If the density of ice is 0.9 g cm-3, then what portion of an iceberg will remain below the surface of water in sea? (Density of sea water = 1.1 g cm-3)
Advertisements
उत्तर
Density of ice (ρ1)= 0.9 gcm-3
Density of sea water (ρs) = 1.1 gcm-3
Let the total volume of the iceberg be V and the volume of immersed portion be v.
According to the law of floatation,
`"v"/"V" = ρ_1/ρ_s`
or , `"v"/"V" = 0.9/1.1 = 9/11`
or , v = `9/11`V
Thus , ice floats with `9/11`th part of its volume above the surface sea water.
संबंधित प्रश्न
Express the relationship between the C.G.S. and S.I. units of density.
Water is heated from 0°C to 10°C . How does the density of water change with temperature?
Explain the following :
An egg sinks in fresh water, but floats in a strong salt solution.
A rubber ball floats on water with its 1/3rd volume outside water. What is the density of rubber?
A block of wood of mass 24 kg floats on water. The volume of wood is 0.032 m3. Find:
- the volume of block below the surface of water,
- the density of wood.
(Density of water = 1000 kg m−3)
When a piece of ice floating in water melts, the level of water inside the glass remains same. Explain.
A body of mass ‘m’ is floating in a liquid of density ‘p’
what is the loss of weight of body?
An iron nail sinks in the water while an iron ship floats on water. Explain the reason.
What can you say about the average density of a ship floating on water?
If 2/3rds of a piece of wood submerges in water and 3/4ths of the same piece of wood submerges in oil. Find the density of the oil.
Complete the following result:
Density in kg m-3 = ______ x density in g cm-3
