NEET Physics Surface Tension MCQ Question
Which combination of statements about surface tension is correct?
(c) Surface tension of a liquid is independent of the area of the surface. (e) A drop of liquid under no external forces is always spherical in shape.
(a) Surface tension of liquids generally increases with temperatures. (d) Water with detergent dissolved in it should have small angles of contact.
(b) Viscosity of gases decreases with temperature, whereas viscosity of liquids increases with temperature. (c) For solids with elastic modulus of rigidity, the shearing force is proportional to shear strain.
(d) Water with detergent dissolved in it should have small angles of contact. (e) A drop of liquid under no external forces is always spherical in shape.
Correct Answer
Detailed Explanation
Statement (c) is correct as surface tension is independent of surface area, and statement (e) is correct because a drop of liquid assumes a spherical shape under no external forces due to surface tension.
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