Day 218: JEE Mains Physics

1. A.
   $\sqrt{\frac{6}{5}}\text{ }T$
2. B.
   $\sqrt{\frac{5}{6}}\text{ }T$
3. C.
   $\sqrt{\frac{6}{7}}\text{ }T$
4. D.
   $\sqrt{\frac{7}{6}}\text{ }T$

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1. A.
   $r_{1} + r_{2}$
2. B.
   $\frac{r_{1}}{2} - r_{2}$
3. C.
   $\frac{r_{1}}{2} + r_{2}$
4. D.
   $r_{1} - r_{2}$

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1. A.
   $\delta' > \delta$
2. B.
   $\delta' < \delta$
3. C.
   $\delta' = \delta$
4. D.
   None

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1. A.
   $249 \times 10^{1}\text{ }Pa$
2. B.
   $24.9 \times 10^{3}\text{ }Pa$
3. C.
   $24.9 \times 10^{5}\text{ }Pa$
4. D.
   $24.9\text{ }Pa$

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1. A.
   Both (a) and (R) are true and (R) is the correct explanation of (a)
2. B.
   Both (a) and (R) are true but (R) is NOT the correct explanation of $(a)$
3. C.
   (a) is true but (R) is false
4. D.
   (a) is false but (R) is true.

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