Mechanical Properties of Fluids — Important Questions
CBSE · Class 11 · Physics
125 important questions from Mechanical Properties of Fluids for CBSE Class 11 Physics, with answers. Covers Surface Tension, Angle of Contact.
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Important Questions from Mechanical Properties of Fluids
What is the primary cause of surface tension in liquids?
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Intermolecular attraction
Surface tension arises from the stronger molecular attraction between liquid molecules at the surface compared to those in the interior.
In Bernoulli's equation, what remains constant along a streamline?
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P + ½ρv² + ρgh
Bernoulli's principle states that the sum of pressure, kinetic energy per unit volume, and potential energy per unit volume remains constant along a streamline.
What is the definition of viscosity?
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Resistance to fluid motion
Viscosity is the internal friction of a fluid that resists the relative motion of its layers.
What determines the capillary rise in a narrow tube?
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Tube radius
Capillary rise is inversely proportional to the tube's radius, with smaller radii causing higher liquid rise.
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Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
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