Recent questions tagged chapter10

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Find the work done in blowing a soap bubble of surface tension 0.06 N/m from 2cm radius to 5cm

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Calculate the radius of new bubble formed when two bubbles of radius `r_1 and r_2`

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A liquid drop of diameter 4 mm breaks into 1000 droplets of equal size. Calculate the resultant change in the surface energy. Surface tension of the liquid is 0.07

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State the principle on which Hydraulic lift work and explain its

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Does Archimedes principle hold in a vessel in a free

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Why does not the pressure of atmosphere break

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If a big drop of radius R is formed by 1000 small droplets of water, then find the radius of small

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A boulder is thrown into a deep lake. As it sinks deeper and deeper into water, does the buoyant force

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At what depth in an ocean will a tube of air have one – fourth volume it will have on reaching the surface? Given Atmospheric Pressure = 76 cm of Hg and density of Hg =

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Why is it painful to walk barefooted on a road covered with pebbles having sharp

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A liquid stands at the same level in the U – lube when at rest. If A is the area of cross section of tube and g is the acceleration due to gravity, what will be the difference in height of the liquid in the two limbs when the system is given acceleration

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Two ballons that have same weight and volume contains equal amounts of helium. One is rigid and other is free to expand as outside pressure decreases. When released, which balloon will rise

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An object floats on water with 20% of its volume above the water time. What is the density of object? Given Density of water =

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A cubical block of iron 5cm on each side is floating on mercury in a vessel:-1) What is the height of the block above mercury level?2) Water is poured into vessel so that it just covers the iron block. What is the height of the water column?Given Density of mercury = 13.6g|`cm^3` and Density of iron =

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Oil is sprinkled on sea waves to calm them.

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A drop of oil placed on the surface of water spreads out, but a drop of water placed on oil contracts.

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Water rises in a capillary tube but mercury falls in the same tube.

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What should be the pressure inside a small air bubble of 0.1mm radius situated just below the water surface? Surface tension of water =` 7.2 × 10^(-2) N`/m and atmospheric pressure = `1.013 × 10^5

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Why is a soap solution a better cleansing agent than ordinary

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The antiseptics used for cuts and wounds in human flesh have low surface tension.

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