A glass tube of 1mm diameter is dipped vertically into a tube of mercury, with its lower end 3 cmm below the mercury surface. What must be the gauge pressure of air in the tube to blow a hemispherical bubble at its lower and ? Given, density of mercury `= 13.6 g//c c` and surface tension of mercury `= 0.540 Nm^(-1). g =10 ms^(-2).`

A glass tube of 1 mm bore is dipped vertically into a container of mercury, with its lower end 5 cm below the mercury surface. What must be the gauge pressure of air in the tube to a hemispherical bubble at its lower end? Given density of mercury = 13.6 xx 10^(3) kg//m^(3) , surface tension of mercury = 440 xx 10^(-3) Nm^(-1) and g = 10m//s^(2)

A glass tube of radius r is dipped vertically into a container of mercury of density rho with its lower end at a depth h below the mercury surface . If S is the surface tension of mercury, what must be the gauge pressure of air in the tube to blow a hemispherical bubble at the lower end?

Find the depression of the meniscus in the capillary tube of diameter 0.4 mm dipped in a beaker containing mercury. (Density of mercury = 13.6 times 10^3 kg m^-3 and surface tension of mercury = 0.49 Nm^-1 and angle of contact = 135^@ ).

A capillary tube is dipped in water with the lower and 10 cm below the surface. Water rises in the tube to a height of 5 cm. The pressure required to blow a bubble at the lower end of the tube will be (atmospheric pressure = 10^5 Nm^(-2) and g = 10 m//s^2 )

The lower end of a capillary tube of diameter 2.0 mm is dipped 8.00cm below the surface of water in a beaker. What is the pressure required in the tube in order to blow a hemispherical bubble at its end in water? The surface tension of water at temperature of the experiments is 7.30 xx 10^(-2) Nm^(-1) . 1 atmospheric pressure = 1.01 xx 10^(5) Pa , density of water = 1000 kg//m^(3), g=9.80 ms^(-2) . also calculate the excess pressure.