Surface Tension
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PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361203 Assertion :
The impurities always decrease the surface tension of a liquid.
Reason :
The change in surface tension of the liquid depends upon the degree of contamination of the impurity.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361204 A spherical drop of water has \(1\;\,mm\) radius. If the surface tension of water is \(70 \times {10^{ - 3}}\;N/m\), then the difference of pressure between inside and outside of the spherical drop is:

1 \(14\;\,N/{m^2}\)
2 \(140\;\,N/{m^2}\)
3 \(35\,\;N/{m^2}\)
4 none of these
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361205 A small hollow sphere which has a small hole in it is immersed in water to a depth of \(20\,cm\) before any water is penetrated into it. If the surface tension of water is \(0.073\,N{m^{ - 1}}\), what is the radius of the hole?

1 \(0.07\;mm\)
2 \(0.04\;mm\)
3 \(0.01\;mm\)
4 \(0.05\;mm\)
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361206 The excess of pressure, due to surface tension, on a spherical liquid drop of radius ' \(R\) ' is proportional to

1 \(R^{-1}\)
2 R
3 \(R^{-2}\)
4 \(R^{2}\)
MHTCET - 2019
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PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361203 Assertion :
The impurities always decrease the surface tension of a liquid.
Reason :
The change in surface tension of the liquid depends upon the degree of contamination of the impurity.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361204 A spherical drop of water has \(1\;\,mm\) radius. If the surface tension of water is \(70 \times {10^{ - 3}}\;N/m\), then the difference of pressure between inside and outside of the spherical drop is:

1 \(14\;\,N/{m^2}\)
2 \(140\;\,N/{m^2}\)
3 \(35\,\;N/{m^2}\)
4 none of these
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361205 A small hollow sphere which has a small hole in it is immersed in water to a depth of \(20\,cm\) before any water is penetrated into it. If the surface tension of water is \(0.073\,N{m^{ - 1}}\), what is the radius of the hole?

1 \(0.07\;mm\)
2 \(0.04\;mm\)
3 \(0.01\;mm\)
4 \(0.05\;mm\)
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361206 The excess of pressure, due to surface tension, on a spherical liquid drop of radius ' \(R\) ' is proportional to

1 \(R^{-1}\)
2 R
3 \(R^{-2}\)
4 \(R^{2}\)
MHTCET - 2019
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PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361203 Assertion :
The impurities always decrease the surface tension of a liquid.
Reason :
The change in surface tension of the liquid depends upon the degree of contamination of the impurity.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361204 A spherical drop of water has \(1\;\,mm\) radius. If the surface tension of water is \(70 \times {10^{ - 3}}\;N/m\), then the difference of pressure between inside and outside of the spherical drop is:

1 \(14\;\,N/{m^2}\)
2 \(140\;\,N/{m^2}\)
3 \(35\,\;N/{m^2}\)
4 none of these
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361205 A small hollow sphere which has a small hole in it is immersed in water to a depth of \(20\,cm\) before any water is penetrated into it. If the surface tension of water is \(0.073\,N{m^{ - 1}}\), what is the radius of the hole?

1 \(0.07\;mm\)
2 \(0.04\;mm\)
3 \(0.01\;mm\)
4 \(0.05\;mm\)
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361206 The excess of pressure, due to surface tension, on a spherical liquid drop of radius ' \(R\) ' is proportional to

1 \(R^{-1}\)
2 R
3 \(R^{-2}\)
4 \(R^{2}\)
MHTCET - 2019
NEET DIGITAL LIBRARY
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361203 Assertion :
The impurities always decrease the surface tension of a liquid.
Reason :
The change in surface tension of the liquid depends upon the degree of contamination of the impurity.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361204 A spherical drop of water has \(1\;\,mm\) radius. If the surface tension of water is \(70 \times {10^{ - 3}}\;N/m\), then the difference of pressure between inside and outside of the spherical drop is:

1 \(14\;\,N/{m^2}\)
2 \(140\;\,N/{m^2}\)
3 \(35\,\;N/{m^2}\)
4 none of these
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361205 A small hollow sphere which has a small hole in it is immersed in water to a depth of \(20\,cm\) before any water is penetrated into it. If the surface tension of water is \(0.073\,N{m^{ - 1}}\), what is the radius of the hole?

1 \(0.07\;mm\)
2 \(0.04\;mm\)
3 \(0.01\;mm\)
4 \(0.05\;mm\)
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

361206 The excess of pressure, due to surface tension, on a spherical liquid drop of radius ' \(R\) ' is proportional to

1 \(R^{-1}\)
2 R
3 \(R^{-2}\)
4 \(R^{2}\)
MHTCET - 2019
Join With Us for More Updates