MCQ
For two infinitely long charged parallel sheets, the electric field at $P$ will be


- A$\frac{\sigma}{2 x}-\frac{\sigma}{2(r-x)}$
- B$\frac{\sigma}{2 \varepsilon_0 x}+\frac{\sigma}{2 \pi(r-x) \varepsilon_0}$
- C$\frac{\sigma}{\varepsilon_0}$
- ✓$0$

$E_N=E_1-E_2=\frac{\sigma}{2 \varepsilon_0}-\frac{\sigma}{2 \varepsilon_0}=0$
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Statement $-2$ : To conserve energy and momentum in $\beta$ decay at least three particles must take part in the transformation.