the density of the atmosphere at sea level is 1.29 kg/m2. assume that is does not change with altitude.Then how high would the atmosphere extend?
Here, h=?
density=1.29 kgm-2 (D)
P=1.01*105 Pa at sea level
We know that pressure exerted by a fluid column is given as
P=h*D*g
Therefore,
h*1.29*9.8=1.01 *105
=> h= 1.01*105/1.29*9.8
=> h=7989m (approx)
Thus the atmosphere would extend upto a height of 7989 m.