MCQ
Note : In the following questions a statement of Assertion $(A)$ followed by a statement of Reason $(R)$ is given. Choose the correct option out of the choices given below each question.
Assertion $(A)$ : It is impossible to determine the exact position and exact momentum of an electron simultaneously.
Reason $(R)$ : The path of an electron in an atom is clearly defined.
  • A
    Both $A$ and $R$ are true but $R$ is not the correct explanation of $A.$
  • B
    $A$ is true but $R$ is false.
  • $A$ is false but $R$ is true.
  • D
    Both $A$ and $R$ are false.

Answer

Correct option: C.
$A$ is false but $R$ is true.
The effect of Heisenberg Uncertainty Principal is significant only for motion of microscopic objects and is negligible for that of macroscopic objects.

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