GKFix MCQ Question

What is the de Broglie wavelength of a bullet of mass 0.040 kg moving at 1.0 km/s?

• A. 1.2 × 10⁻³⁵ m
• B. 1.66 × 10⁻³⁵ m
• C. 2.1 × 10⁻³⁵ m
• D. 2.5 × 10⁻³⁵ m