Question:

On heating water, bubbles beings formed at the bottom of the vessel detatch and rise. Take the bubbles to the spheres of radius

On heating water, bubbles beings formed at
the bottom of the vessel detatch and rise.
Take the bubbles to the spheres of radius R
and making a circular contact of radiusr
with the bottom of the vessel. If r << R, and
the surface tension of water is T, value ofr
just before bubbles detatch is : (density of
water is p).
Le
R
2r

On heating water, bubbles beings formed at the bottom of the vessel detatch and rise. Take the bubbles to the spheres of radius R and making a circular contact of radiusr with the bottom of the vessel. If r << R, and the surface tension of water is T, value ofr just before bubbles detatch is : (density of water is p). Le R 2r

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