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 is clearly defined.

• A. Both Assertion and Reason are true and Reason is the correct explanation of Assertion
• B. Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
• C. Assertion is true but Reason is false
• D. Both Assertion and Reason are false

Answer 1

Answer: (C)

According to Heisenberg's uncertainty principle, the exact position and exact momentum of an electron cannot be determined simultaneously, thus, path of an electron in an atom cannot be defined clearly.