Tag: common consequences of the atmospheric pressure
Questions Related to common consequences of the atmospheric pressure
The volume of a given amount of water ______ when its temperature is increased form $0^0 C$ to $4^0 C$.
A air bubble rises from bottom of a lake to surface If its radius increases by 200% and atmospheric pressure is equal to water coloumn of height H. then depth of lake is
A large bottle is fitted with a capillary siphon. Ratio of times taken to empty the bottle when it is filled with (i) water (ii) petroleum of relative density 0.8.
$( _{water} = 0.001poise, _{petroleum} = 0.002 poise, d _{water} = 1000 kg/m^3)$
Siphon will fail to work if
A ${ 16cm }^{ 3 }$ volume of water flows per second through a capillary tube of radius r cm and of length 1 cm, when connected to a pressure head of h cm of water. If a tube of the same length and radius r/2 is connected to the same pressure head, find the mass of water flowing per minute through the tube
If it takes $5$ minutes to fill a 15 litre bucket from a water tap of diameter $\frac{2}{\sqrt{\pi}}$ cm then the Reynolds number for the flow is (density of water = $10^3 kg/m^3$ and viscosity of water = $10^{-3}$Pa.s) close to
In a weather map, lines joining all those regions with same atmospheric pressure are called
Atmospheric pressure at sea level is
Unit for pressure used in weather maps is millibar. 1 millibar is equal to
We sit in the room with windows open. Then