Assertion (A): The path of an electron in an atom is clearly defined.
Reason (R): It is impossible to determine the exact position and exact momentum of an electron simultaneously

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Both A and R are true and R is the correct explanation of A

A is true but R is false

Both A and R are false

Both A and R are true but R is not the correct explanation of A

answer is A.

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Detailed Solution

According to Heisenberg’s uncertainty principle, the exact momentum of an electron cannot be determined simultaneously. Thus, the path of electron in an atom is not clearly defined. Hence (a) option is correct

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