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In the figure, a very large plane sheet of positive charge is shown. P 1 and P 2 are two points at distance l and 2 l from the charge distribution. If σ is the surface charge density, then the magnitude of electric fields E 1 and E 2 and P 1 and P 2 respectively are

1. E 1 = 0 ε σ , E 2 = 0 2 ε σ
2. E 1 = 0 2 ε σ , E 2 = 0 ε σ
3. E 1 = E 2 = 0 2 ε σ
4. E 1 = E 2 = 0 ε σ

Correct answer: E 1 = E 2 = 0 2 ε σ

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