AIPMT PRELIMS2008Chemistry-Quantum Mechanics
AIPMT PRELIMS 2008 Chemistry Uncertainty Principle MCQ Question
Type: MCQ-conceptual-Hard-Class 11
If uncertainty in position and momentum are equal, then uncertainty in velocity is -
A
1/m √(h/π)
B
√(h/π)
C
1/2m √(h/π)
D
√(h/2π)
Correct Answer
Option C
Detailed Explanation
According to Heisenberg's uncertainty principle, ΔxΔp ≥ h/4π. If Δx = Δp, then Δv = Δp/m = 1/2m √(h/π).
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