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Vapour Pressure

The liquid dr...

Question

The liquid drop of density ρ, radius r and surface tension (force per unit length ) σ oscillates with time period T. Which of the following expression for T²is correct
a.) ρr^3/σ
b.) ρσ/r³
c.)r³σ/ρ
d.) NONE

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Solution

Time period ,
T = sqrt( (density * (radius)³) / surface tension))
T^2 = (density * (radius)³) / surface tension

ans : (a)

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