Air is blown in the soap bubble to increase its size. How will the air pressure inside the soap bubble change?
When air is blown in the soap bubble to increase it's size, the pressure inside the soap bubble decreases.
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Write the expression for the height to which liquid rises or falls in the capillary tube when dipped in the liquid.
The height to which the liquid rises or falls in the capillary tube when dipped in the liquid is given by,
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A U-tube contains water and methylated spirit separated by mercury. The mercury columns in the two arms are in level with 10.0 cm of water in one arm and 12.5 cm of spirit in the other. What is the relative density of spirit?
Here, hw = 10cm, hs = 12.5cm and mercury columns in two arms are in level.
Since mercury columns in the arms are in level, therefore, pressure due to 10 cm of water is equal to pressure due to 12.5 cm of spirit.
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