Question 43
Modern PhysicsIf Δx is the uncertainty in the measurement of the position of a particle along the x-axis and ΔPx is the uncertainty in the measurement of the linear momentum along the x-axis, then the uncertainty principle relation is given as
- A.Δx ΔPx ≥ h
- B.Δx ΔPx = 0
- C.Δx ΔPx < h
- D.Δx ΔPx = ∞
Show the answer and explanation
Answer: A (Δx ΔPx ≥ h)
Explanation
Heisenberg's uncertainty principle says the product of the uncertainties in position and momentum cannot be smaller than about Planck's constant.