MDCAT Physics MCQ #2589

Uncertainty in position Δx = 1 nm for a particle. Minimum Δp is... (h = 6.63 × 10⁻³⁴ J·s)

MDCAT Physics MCQ #2589

  1. Question 1

    Q1. Uncertainty in position Δx = 1 nm for a particle. Minimum Δp is... (h = 6.63 × 10⁻³⁴ J·s)

    • A) 5.28 × 10⁻²⁶ kg·m/s
    • B) 5.28 × 10⁻²⁹ kg·m/s
    • C) 1.06 × 10⁻²⁶ kg·m/s
    • D) 1.06 × 10⁻²³ kg·m/s

    Answer: 5.28 × 10⁻²⁶ kg·m/s

    Explanation: Δp ≥ h/(4πΔx) = 5.28 × 10⁻²⁶ kg·m/s. Option B divides by 1000 incorrectly.