The de Broglie wavelength of a bullet (7.5 g)traveling at 700 m/s is ________ m. A)7.7 × 10³³ B)1.3 × 10^-34 C)6.2 × 10^-29 D)1.3 × 10^-27 E)1.3 × 10^-23

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Quizplus · Accepted Answer

The de Broglie wavelength is calculated using the formula λ = h/p, where h is Planck's constant (6.626 × 10^-34 Js) and p is the momentum (mass × velocity). For a bullet with mass 7.5 g (0.0075 kg) and velocity 700 m/s, the momentum p = 0.0075 kg × 700 m/s = 5.25 kg·m/s. Thus, λ = 6.626 × 10^-34 Js / 5.25 kg·m/s ≈ 1.3 × 10^-34 m.

The De Broglie Wavelength of a Bullet (7