Advertisements
Advertisements
Question
Icebergs floating on sea water are dangerous for ships. Explain the reason.
Advertisements
Solution
Icebergs are huge masses of ice floating in the sea [density of ice being 0.917 g Cm-3] with about 9/10 portion of ice below seawater and only 1/10 portion of it above. Since such a large portion of the iceberg is submerged underwater it becomes difficult for the sailor to estimate the size of the iceberg increasing the danger of the ship colliding in them.
APPEARS IN
RELATED QUESTIONS
The density of a piece of brass will change by changing its size or shape.
Density of water is .......Kg m-3.
1 g cm-3 = ......... Kg m-3.
Match the following :
| Column A | Column B | ||
| (a) | kg `m^-3` | (i) | relative density |
| (b) | no unit | (ii) | sinks in alcohol |
| (c) | relative density | (iii) | floats on water |
| (d) | iron | (iv) | density |
| (e) | wood | (v) | density bottle |
It is easier to swim in sea water than in river water. Explain the reason.
A piece of zinc of mass 438.6 g has a volume of 86 cm3. Calculate the density of zinc.
A piece of wood of mass 150 g has a volume of 200 Cm3. Find the density of wood in C.GS. unit and S.I. unit.
Calculate the volume of wood of mass 6000 kg if the density of wood is 0.8 g Cm-3
Calculate the density of solid from the following data :
(a) Mass of solid = 72 g
(b) Initial volume of water in measuring cylinder = 24 ml
(c) Final volume of water when solid is completely immersed in water = 42 ml
The mass of 5 litre of water is 5 kg. Find the density of water in g cm-3.
