JAMB - Physics (1990 - No. 9)
What is the length of liquid column in a barometer tube that would support an atmospheric pressure of 102000Nm-2 if the density of the liquid is 2600kgm-3? [g = 10ms-2]
0.75m
0.76m
3.92m
39.23m
Vysvetlenie
pressure = g x density x height
102000 = 10 x 2600 x height
height = 3.92m
102000 = 10 x 2600 x height
height = 3.92m