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JEE Main 10 April 2015 Paper

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Question : 15

Total: 90

Shown in the figure are two point charges +Q and −Q inside the cavity of a spherical shell. The charges are kept near the surface of the cavity on opposite sides of the centre of the shell. If σ1 is the surface charge on the inner surface and Q1 net charge on it and σ2 the surface charge on the outer surface and Q2 net charge on it then :

σ1≠0,Q1≠0
σ2≠0,Q2≠0
σ1≠0,Q1=0
σ2≠0,Q2=0
σ1≠0,Q1=0
σ2=0,Q2=0
σ1=0,Q1=0
σ2=0,Q2=0

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