The expression for capillarion rise is given by when, \sigma-surface tendon, \theta-Angle of contact and \rho-density :

Correct Answer is : h=4σcosθρgd

h={2 \sigma\sin\theta} /{\rhogd}

h={4\sigma\cos \theta} /{\rhogd}

h={2\sigma\cos \theta} /{\rhogd}

h={4 \sigma\sin\theta} /{\rhogd}

SSC JE Mechanical Engineering 2014 Set 2 Paper

Question : 144 of 200

Marks: +1, -0

The expression for capillarion rise is given by when,

σ

-surface tendon,

θ

-Angle of contact and

ρ

-density :

Solution:

Capillary rise

h={4σ\cos θ} /{ρgd}

where σ = surface tension

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