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Q. An uncharged spherical conducting shell surrounds a point charge - q at its centre. Then a charge +3q is placed on the outside surface of the shell. When static equilibrium of the charges on the shell is reached, the charges on the inner and outer surfaces of the shell are respectively:
A) -q and 4q
B) -q and 2q
C) +q and 4q
D) +q and 2q

Q. The average intensity of light emerging from a polarizing sheet is 0.709 W/m2, and that of the horizontally polarized light incident on the sheet is 0.981 W/m2. Determine the angle that the transmission axis of the polarizing sheet makes with the horizontal.

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Category:- Physics
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