Day 115: JEE Mains Physics

1. A.
   $\frac{1}{4\pi\epsilon_{0}}\left( \frac{q_{1} + q_{2} + q_{3}}{a} \right),\frac{1}{4\pi\epsilon_{0}}\left( \frac{q_{1} + q_{2} + q_{3}}{\text{ }b} \right),\frac{1}{4\pi\epsilon_{0}}\left( \frac{q_{1} + q_{2} + q_{3}}{c} \right)$
2. B.
   $\frac{1}{4\pi\epsilon_{0}}\left( \frac{q_{1} + q_{2} + q_{3}}{a} \right),\frac{1}{4\pi\epsilon_{0}}\left( \frac{q_{1} + q_{2}}{\text{ }b} + \frac{q_{3}}{c} \right),\frac{1}{4\pi\epsilon_{0}}\left( \frac{q_{1}}{a} + \frac{q_{2}}{\text{ }b} + \frac{q_{3}}{c} \right)$
3. C.
   $\frac{1}{4\pi\epsilon_{0}}\left( \frac{q_{1}}{a} + \frac{q_{2}}{\text{ }b} + \frac{q_{3}}{c} \right),\frac{1}{4\pi\epsilon_{0}}\left( \frac{q_{1} + q_{2}}{\text{ }b} + \frac{q_{3}}{c} \right),\frac{1}{4\pi\epsilon_{0}}\left( \frac{q_{1} + q_{2} + q_{3}}{c} \right)$
4. D.
   $\frac{1}{4\pi\epsilon_{0}}\left( \frac{q_{1}}{a} + \frac{q_{2}}{\text{ }b} + \frac{q_{3}}{c} \right),\frac{1}{4\pi\epsilon_{0}}\left( \frac{q_{1} + q_{2} + q_{3}}{\text{ }b} \right),\frac{1}{4\pi\epsilon_{0}}\left( \frac{q_{1} + q_{2} + q_{3}}{c} \right)$

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1. A.
   $2\pi\sqrt{\frac{M}{\rho Ag}}$
2. B.
   $\pi\sqrt{\frac{2M}{\rho Ag}}$
3. C.
   $\pi\sqrt{\frac{\rho A}{Mg}}$
4. D.
   $2\pi\sqrt{\frac{\rho\text{ }A}{Mg}}$

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1. A.
   2
2. B.
   5
3. C.
   3.5
4. D.
   4

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1. A.
   1.4
2. B.
   -90.7
3. C.
   49.3
4. D.
   24.3

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1. A.
   4.2
2. B.
   2.0
3. C.
   3.0
4. D.
   4.5

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