Question

6- 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.
(i)Both A and R are true and R is the correct explanation of A.
(ii)Both A and R are true and R is not the correct explanation of A.
(iii) A is true and R is false,
(iv) Both A and Rare false.
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Answer 1

Answer:

Assertion is true and reason is false. According to Heisenberg's uncertainly principle the exact position and exact according to Heisnerberg's uncertainly principle, the exact position and exact momentum of an electron cannot be determined simultaneously . Thus, the path of electron in an atom is not clearly defind.