WAEC Physics 2016 Objective — Question 50
Question 50 of 50 from the West African Examinations Council (WAEC) Physics 2016 Objective paper, with the correct answer and a full explanation.
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50. Let Δx be the uncertainty in the measurements of position and Δp the uncertainty in measurement of momentum. The uncertainty principle relation is given as A. Δx.Δp=h B. Δx.Δp≤h C. Δx.Δp≥h D. Δx.Δp>h
- A. Δx.Δp=h
- B. Δx.Δp≤h
- C. Δx.Δp≥hCorrect
- D. Δx.Δp>h
Explanation
The Heisenberg uncertainty principle states that it is impossible to know accurately the position and momentum of a particle simultaneously: Δx.Δp≥h/2π.
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