Day 492: JEE Mains Physics

1. A.
   $\frac{9}{16}\sqrt{2} \times 10^{5}$
2. B.
   $4.5\sqrt{2} \times 10^{4}$
3. C.
   $9\sqrt{2} \times 10^{4}$
4. D.
   $\frac{9}{16}\sqrt{2} \times 10^{4}$

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1. A.
   $2r_{A}^{2} = r_{B}^{2}$
2. B.
   $r_{A}^{3} = 2r_{B}^{3}$
3. C.
   $r_{A}^{3} = 4r_{B}^{3}$
4. D.
   $T_{A}^{2} - T_{B}^{2} = \frac{\pi^{2}}{GM}\left( r_{B}^{3} - 4r_{A}^{3} \right)$

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1. A.
   $500\text{ }K$
2. B.
   $200\text{ }K$
3. C.
   $100\text{ }K$
4. D.
   $300\text{ }K$

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1. A.
   $- 2\widehat{i} - \widehat{j} - \widehat{k}$
2. B.
   $4\widehat{i} + 2\widehat{j} + 2\widehat{k}$
3. C.
   $2\widehat{i} + \widehat{j} + \widehat{k}$
4. D.
   $2\widehat{i} + 3\widehat{j} + 3\widehat{k}$

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