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Properties of Matter question

2017 · Shift 1 · Q45
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Properties of Matter question

2017 · Shift 1 · Q45

JEE AdvancedPhysicsProperties of MatterNumerical+3 / −1
A drop of liquid of radius R=10−2 mR = {10^{ - 2}}\,mR=10−2m having surface tension S=0.14πNm−1S = {{0.1} \over {4\pi }}N{m^{ - 1}}S=4π0.1​Nm−1 divides itself into KKK identical drops. In this process the total change in the surface energy ΔU=10−3 J.\Delta U = {10^{ - 3}}\,J.ΔU=10−3J. If K=10αK = {10^\alpha }K=10α then the value of α\alphaα is
Numerical answer
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