Assertion $(A)$: The probability of finding an electron in a small volume around a point $(x, y, z)$ at a distance $r$ from the nucleus is proportional to $\psi^2$.
Reason $(R)$: Subatomic particles possess both particle and wave nature.

  • A
    $A$ and $R$ are both true,and $R$ is the correct explanation of $A$.
  • B
    $A$ and $R$ are both true,but $R$ is not the correct explanation of $A$.
  • C
    $A$ is true,but $R$ is false.
  • D
    $A$ is false,but $R$ is true.

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