Day 245: JEE Mains Physics

1. A.
   $K = \frac{Y\eta}{9\eta - 3Y}N/m^{2}$
2. B.
   $\eta = \frac{3YK}{9\text{ }K + Y}N/m^{2}$
3. C.
   $Y = \frac{9K\eta}{3K - \eta}N/m^{2}$
4. D.
   $Y = \frac{9K\eta}{2\eta + 3K}N/m^{2}$

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1. A.
   $2\pi\sqrt{\frac{R}{g}}$
2. B.
   $\frac{1}{2\pi}\sqrt{\frac{g}{R}}$
3. C.
   $\frac{2\pi R}{g}$
4. D.
   $\frac{g}{2\pi R}$

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1. A.
   $\frac{1}{\sqrt{3}}$
2. B.
   $\frac{1}{2}$
3. C.
   $\sqrt{3}$
4. D.
   1

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