in a capillary tube experiment a vertical 40cm long capillary tube is dipped in water. the water raises to 12cm dur to capillary action.if this action is conducted in freely falling elevator the length of water column becomes
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The length of water column becomes 40 cm.
Explanation:
The height of the liquid in capillary tube is given by the formula:
h = (2T)/(rρg)
Where,
T = Surface tension
r = Radius of tube
ρ = Density of the liquid
g = Acceleration due to gravity
The acceleration due to gravity of a freely falling object is zero.
Anything divided by zero is infinity. The infinity is maximum level in the tube. The maximum level is maximum height of the tube. The height of the tube is 40 cm.
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