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JEE Advanced 2020 Full Test 1 Paper 1

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Question : 17 of 54

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There is spherical symmetric charge distribution around origin. The electrostatic potential at a distance 'r' from origin is given as V=‌

where K is a positive constant. The slope of tangent to density vs 'r' graph at r=‌

m is αK∈0. Then find value of " α '.

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