Day 567: JEE Mains Physics

1. A.
   Both $A$ and $R$ true, and $R$ is 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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1. A.
   $\frac{1}{2}mgy_{0}^{2}$
2. B.
   $\frac{1}{2}mgy^{2}$
3. C.
   $mg\left( y - y_{0} \right)$
4. D.
   ${mgy}_{0}$

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1. A.
   $\frac{2}{3}R$
2. B.
   $\frac{8R}{3}$
3. C.
   $\frac{5R}{3}$
4. D.
   $\frac{4R}{3}$

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1. A.
   C and E only
2. B.
   B and D only
3. C.
   A only
4. D.
   C only

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1. A.
   $T = 700\text{ }N$ while climbing upward
2. B.
   $T = 350\text{ }N$ while going downward
3. C.
   Rope will break while climbing upward
4. D.
   Rope will break while going downward

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