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JEE Main Physics Class 11 Properties of Solids and Liquids Questions Part 1 Questions

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Question : 28

Total: 100

On heating water, bubbles being formed at the bottom of the vessel detach and rise. Take the bubbles to be spheres of radius R and making a circular contact of radius r with the bottom of the vessel. If r<<R and the surface tension of water is T, value of r just before bubbles detach is: (density of water is ρw )

R2√
2ρwg
3T
R2√
ρwg
6T
R2√
ρwg
T
R2√
3ρwg
T

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