Uncertainty Principle Using Momentum and Position: An electron inside a hydrogen atom is confined to within a space of about 0.12 nm. What is the uncertainty in this electron's speed? (melectron = 9.11 × 10-31 kg, h = 6.626 × 10-34 J ? s)
A. 3.1 × 105 m/s
B. 4.8 m/s
C. 3.1 km/s
D. 9.6 × 105 m/s
E. 4.8 × 106 m/s
Answer: D
Physics & Space Science
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