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What are the factors affecting the surface tension of a liquid?

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प्रश्न

What are the factors affecting the surface tension of a liquid?

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उत्तर

  1. The presence of any contamination or impurities.
  2. The presence of dissolved substances.
  3. Electrification
  4. Temperature
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अध्याय 7: Properties of Matter - Evaluation [पृष्ठ ९२]

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सामाचीर कलवी Physics - Volume 1 and 2 [English] Class 11 TN Board
अध्याय 7 Properties of Matter
Evaluation | Q II. 25. | पृष्ठ ९२

संबंधित प्रश्न

Two narrow bores of diameters 3.0 mm and 6.0 mm are joined together to form a U-tube open at both ends. If the U-tube contains water, what is the difference in its levels in the two limbs of the tube? Surface tension of water at the temperature of the experiment is 7.3 × 10–2 N m–1. Take the angle of contact to be zero and density of water to be 1.0 × 103 kg m–3 (g = 9.8 m s–2)


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(a) are smaller than other molecules
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(d) feel a net force in one direction.


When a capillary tube is dipped into a liquid, the liquid neither rises nor falls in the capillary.
(a) The surface tension of the liquid must be zero.
(b) The contact angle must be 90°.
(c) The surface tension may be zero.
(d) The contact angle may be 90°.


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