Day 576: JEE Mains Physics

1. A.
   $\sigma/ \in_{0}R$
2. B.
   $\sigma/2 \in_{0}$
3. C.
   $\sigma/ \in_{0}$
4. D.
   $\sigma/4 \in 0$

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1. A.
   $\frac{6}{\sqrt{110}}$
2. B.
   $\frac{3}{\sqrt{113}}$
3. C.
   $\frac{3}{\sqrt{109}}$
4. D.
   $\frac{2}{\sqrt{109}}$

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1. A.
   $\overrightarrow{A} \cdot \overrightarrow{A} = 0$
2. B.
   $\overrightarrow{A} \times \overrightarrow{A} < 0$
3. C.
   $\overrightarrow{A} \times \overrightarrow{A} = 0$
4. D.
   $\overrightarrow{A} \times \overrightarrow{A} > 0$

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