Surface Tension
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PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361267 A certain number of spherical drops of a liquid of radius \(r\) coalesce to form a single drop of radius \(R\) and volume \(V\). If \(T\) is the surface tension of the liquid, then an energy of

1 \(4VT\left( {\frac{1}{r} - \frac{1}{R}} \right)\) is released
2 \(3VT\left( {\frac{1}{r} - \frac{1}{R}} \right)\) is released
3 \(3VT\left( {\frac{1}{r} + \frac{1}{R}} \right)\) is absorbed
4 Energy is neither released nor absorbed
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361268 The surface tension of a soap solution is \(2 \times {10^{ - 2}}\;N/m\). To blow a bubble of radius \(1\;cm\), the work done is

1 \(4\pi \times {10^{ - 6}}J\)
2 \(8\pi \times {10^{ - 6}}J\)
3 \(12\pi \times {10^{ - 6}}J\)
4 \(16\pi \times {10^{ - 6}}J\)
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361269 The surface tension of a liquid is \(10\;N{\rm{/}}m\). If a thin film of the area \(0.05\;{m^2}\) is formed on a loop. Then the surface energy will be

1 \(5\,J\)
2 \(3\,J\)
3 \(2\,J\)
4 \(1\,J\)
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361270 The surface tension of soap solution is \(0.05\;N{\rm{/}}m\). The work done in blowing to form a soap bubble of surface area \(80\;c{m^2}\) is

1 \(2 \times {10^{ - 4}}\;J\)
2 \(8 \times {10^{ - 4}}\;J\)
3 \(7 \times {10^{ - 3}}\;J\)
4 \(3 \times {10^{ - 4}}\;J\)
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PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361267 A certain number of spherical drops of a liquid of radius \(r\) coalesce to form a single drop of radius \(R\) and volume \(V\). If \(T\) is the surface tension of the liquid, then an energy of

1 \(4VT\left( {\frac{1}{r} - \frac{1}{R}} \right)\) is released
2 \(3VT\left( {\frac{1}{r} - \frac{1}{R}} \right)\) is released
3 \(3VT\left( {\frac{1}{r} + \frac{1}{R}} \right)\) is absorbed
4 Energy is neither released nor absorbed
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361268 The surface tension of a soap solution is \(2 \times {10^{ - 2}}\;N/m\). To blow a bubble of radius \(1\;cm\), the work done is

1 \(4\pi \times {10^{ - 6}}J\)
2 \(8\pi \times {10^{ - 6}}J\)
3 \(12\pi \times {10^{ - 6}}J\)
4 \(16\pi \times {10^{ - 6}}J\)
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361269 The surface tension of a liquid is \(10\;N{\rm{/}}m\). If a thin film of the area \(0.05\;{m^2}\) is formed on a loop. Then the surface energy will be

1 \(5\,J\)
2 \(3\,J\)
3 \(2\,J\)
4 \(1\,J\)
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361270 The surface tension of soap solution is \(0.05\;N{\rm{/}}m\). The work done in blowing to form a soap bubble of surface area \(80\;c{m^2}\) is

1 \(2 \times {10^{ - 4}}\;J\)
2 \(8 \times {10^{ - 4}}\;J\)
3 \(7 \times {10^{ - 3}}\;J\)
4 \(3 \times {10^{ - 4}}\;J\)
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PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361267 A certain number of spherical drops of a liquid of radius \(r\) coalesce to form a single drop of radius \(R\) and volume \(V\). If \(T\) is the surface tension of the liquid, then an energy of

1 \(4VT\left( {\frac{1}{r} - \frac{1}{R}} \right)\) is released
2 \(3VT\left( {\frac{1}{r} - \frac{1}{R}} \right)\) is released
3 \(3VT\left( {\frac{1}{r} + \frac{1}{R}} \right)\) is absorbed
4 Energy is neither released nor absorbed
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361268 The surface tension of a soap solution is \(2 \times {10^{ - 2}}\;N/m\). To blow a bubble of radius \(1\;cm\), the work done is

1 \(4\pi \times {10^{ - 6}}J\)
2 \(8\pi \times {10^{ - 6}}J\)
3 \(12\pi \times {10^{ - 6}}J\)
4 \(16\pi \times {10^{ - 6}}J\)
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361269 The surface tension of a liquid is \(10\;N{\rm{/}}m\). If a thin film of the area \(0.05\;{m^2}\) is formed on a loop. Then the surface energy will be

1 \(5\,J\)
2 \(3\,J\)
3 \(2\,J\)
4 \(1\,J\)
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361270 The surface tension of soap solution is \(0.05\;N{\rm{/}}m\). The work done in blowing to form a soap bubble of surface area \(80\;c{m^2}\) is

1 \(2 \times {10^{ - 4}}\;J\)
2 \(8 \times {10^{ - 4}}\;J\)
3 \(7 \times {10^{ - 3}}\;J\)
4 \(3 \times {10^{ - 4}}\;J\)
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PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361267 A certain number of spherical drops of a liquid of radius \(r\) coalesce to form a single drop of radius \(R\) and volume \(V\). If \(T\) is the surface tension of the liquid, then an energy of

1 \(4VT\left( {\frac{1}{r} - \frac{1}{R}} \right)\) is released
2 \(3VT\left( {\frac{1}{r} - \frac{1}{R}} \right)\) is released
3 \(3VT\left( {\frac{1}{r} + \frac{1}{R}} \right)\) is absorbed
4 Energy is neither released nor absorbed
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361268 The surface tension of a soap solution is \(2 \times {10^{ - 2}}\;N/m\). To blow a bubble of radius \(1\;cm\), the work done is

1 \(4\pi \times {10^{ - 6}}J\)
2 \(8\pi \times {10^{ - 6}}J\)
3 \(12\pi \times {10^{ - 6}}J\)
4 \(16\pi \times {10^{ - 6}}J\)
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361269 The surface tension of a liquid is \(10\;N{\rm{/}}m\). If a thin film of the area \(0.05\;{m^2}\) is formed on a loop. Then the surface energy will be

1 \(5\,J\)
2 \(3\,J\)
3 \(2\,J\)
4 \(1\,J\)
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361270 The surface tension of soap solution is \(0.05\;N{\rm{/}}m\). The work done in blowing to form a soap bubble of surface area \(80\;c{m^2}\) is

1 \(2 \times {10^{ - 4}}\;J\)
2 \(8 \times {10^{ - 4}}\;J\)
3 \(7 \times {10^{ - 3}}\;J\)
4 \(3 \times {10^{ - 4}}\;J\)
For More Updates join with Us
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