Surface Tension
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361207 A spherical soap bubble of radius \(1\;cm\) is formed inside another of radius \(3\;\,cm\) the radius of single soap bubble which maintains the same pressure difference as inside the smaller and outside the larger soap bubble is _ \(cm\)
supporting img

1 \(4 / 3\)
2 \(3 / 4\)
3 \(1 / 2\)
4 2
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361208 Two soap bubbles of radii \(R_{1}\) and \(R_{2}\) are kept in vacuum at constant temperature, the ratio of masses of air inside them, is

1 \(\dfrac{R_{1}}{R_{2}}\)
2 \(\left(\dfrac{R_{1}}{R_{2}}\right)^{3}\)
3 \(\dfrac{R_{2}}{R_{1}}\)
4 \(\left(\dfrac{R_{1}}{R_{2}}\right)^{2}\)
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361209 Pressure inside a soap bubble is greater than the pressure outside by an amount (given : \(R=\) Radius of bubble, \(S=\) Surface tension of bubble).

1 \(\dfrac{4 S}{R}\)
2 \(\dfrac{4 R}{S}\)
3 \(\dfrac{S}{R}\)
4 \(\dfrac{2 S}{R}\)
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361210 Excess pressure inside a soap bubble is three times that of the other bubble. The ratio of their volumes will be

1 \({1: 3}\)
2 \({1: 9}\)
3 \({1: 16}\)
4 \({1: 27}\)
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361207 A spherical soap bubble of radius \(1\;cm\) is formed inside another of radius \(3\;\,cm\) the radius of single soap bubble which maintains the same pressure difference as inside the smaller and outside the larger soap bubble is _ \(cm\)
supporting img

1 \(4 / 3\)
2 \(3 / 4\)
3 \(1 / 2\)
4 2
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361208 Two soap bubbles of radii \(R_{1}\) and \(R_{2}\) are kept in vacuum at constant temperature, the ratio of masses of air inside them, is

1 \(\dfrac{R_{1}}{R_{2}}\)
2 \(\left(\dfrac{R_{1}}{R_{2}}\right)^{3}\)
3 \(\dfrac{R_{2}}{R_{1}}\)
4 \(\left(\dfrac{R_{1}}{R_{2}}\right)^{2}\)
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361209 Pressure inside a soap bubble is greater than the pressure outside by an amount (given : \(R=\) Radius of bubble, \(S=\) Surface tension of bubble).

1 \(\dfrac{4 S}{R}\)
2 \(\dfrac{4 R}{S}\)
3 \(\dfrac{S}{R}\)
4 \(\dfrac{2 S}{R}\)
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361210 Excess pressure inside a soap bubble is three times that of the other bubble. The ratio of their volumes will be

1 \({1: 3}\)
2 \({1: 9}\)
3 \({1: 16}\)
4 \({1: 27}\)
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361207 A spherical soap bubble of radius \(1\;cm\) is formed inside another of radius \(3\;\,cm\) the radius of single soap bubble which maintains the same pressure difference as inside the smaller and outside the larger soap bubble is _ \(cm\)
supporting img

1 \(4 / 3\)
2 \(3 / 4\)
3 \(1 / 2\)
4 2
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361208 Two soap bubbles of radii \(R_{1}\) and \(R_{2}\) are kept in vacuum at constant temperature, the ratio of masses of air inside them, is

1 \(\dfrac{R_{1}}{R_{2}}\)
2 \(\left(\dfrac{R_{1}}{R_{2}}\right)^{3}\)
3 \(\dfrac{R_{2}}{R_{1}}\)
4 \(\left(\dfrac{R_{1}}{R_{2}}\right)^{2}\)
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361209 Pressure inside a soap bubble is greater than the pressure outside by an amount (given : \(R=\) Radius of bubble, \(S=\) Surface tension of bubble).

1 \(\dfrac{4 S}{R}\)
2 \(\dfrac{4 R}{S}\)
3 \(\dfrac{S}{R}\)
4 \(\dfrac{2 S}{R}\)
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361210 Excess pressure inside a soap bubble is three times that of the other bubble. The ratio of their volumes will be

1 \({1: 3}\)
2 \({1: 9}\)
3 \({1: 16}\)
4 \({1: 27}\)
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361207 A spherical soap bubble of radius \(1\;cm\) is formed inside another of radius \(3\;\,cm\) the radius of single soap bubble which maintains the same pressure difference as inside the smaller and outside the larger soap bubble is _ \(cm\)
supporting img

1 \(4 / 3\)
2 \(3 / 4\)
3 \(1 / 2\)
4 2
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361208 Two soap bubbles of radii \(R_{1}\) and \(R_{2}\) are kept in vacuum at constant temperature, the ratio of masses of air inside them, is

1 \(\dfrac{R_{1}}{R_{2}}\)
2 \(\left(\dfrac{R_{1}}{R_{2}}\right)^{3}\)
3 \(\dfrac{R_{2}}{R_{1}}\)
4 \(\left(\dfrac{R_{1}}{R_{2}}\right)^{2}\)
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361209 Pressure inside a soap bubble is greater than the pressure outside by an amount (given : \(R=\) Radius of bubble, \(S=\) Surface tension of bubble).

1 \(\dfrac{4 S}{R}\)
2 \(\dfrac{4 R}{S}\)
3 \(\dfrac{S}{R}\)
4 \(\dfrac{2 S}{R}\)
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361210 Excess pressure inside a soap bubble is three times that of the other bubble. The ratio of their volumes will be

1 \({1: 3}\)
2 \({1: 9}\)
3 \({1: 16}\)
4 \({1: 27}\)
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