Assertion A : The escape velocities of planet \( \mathrm{A} \) and ...

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Assertion A : The escape velocities of planet \( \mathrm{A} \) and \( \mathrm{B} \) are same. But A and B are of unequal mass.
Reason \( R \) : The product of their mass and radius must be same. \( M_{1} R_{1}=M_{2} R_{2} \)
In the light of the above statements, choose the most appropriate answer from the options given below :
1. A is correct but \( \mathbf{R} \) is not correct
2. Both \( \mathbf{A} \) and \( \mathbf{R} \) are correct and \( \mathbf{R} \) is the correct explanation of \( \mathbf{A} \)
3. Both \( \mathbf{A} \) and \( \mathbf{R} \) are correct but \( \mathbf{R} \) is NOT the correct explanation of \( \mathbf{A} \)
4. \( \mathbf{A} \) is not correct but \( \mathbf{R} \) is correct
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