Day 368: JEE Mains Physics

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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1. A.
   $1500\text{ }J$
2. B.
   $1000\text{ }J$
3. C.
   $500\text{ }J$
4. D.
   $2000\text{ }J$

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1. A.
   None of the above
2. B.
   $T_{1/2} = T_{1/2}^{(a)} + T_{1/2}^{(b)}$
3. C.
   $T_{1/2} = \frac{T_{1/2}^{(a)}\,T_{1/2}^{(b)}}{T_{1/2}^{(a)} + T_{1/2}^{(b)}}$
4. D.
   $T_{1/2} = \frac{T_{1/2}^{(a)} + T_{1/2}^{(b)}}{T_{1/2}^{(a)} - T_{1/2}^{(b)}}$

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1. A.
   $3:1$
2. B.
   $2:1$
3. C.
   $1:2$
4. D.
   $1:1$

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