Day 464: JEE Mains Physics

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

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1. A.
   25
2. B.
   50
3. C.
   66.6
4. D.
   100

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1. A.
   Infra-red radiation
2. B.
   X-rays
3. C.
   Gamma rays
4. D.
   Visible radiation

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

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

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