GKFix MCQ Question

What is the de Broglie wavelength of a 100 g ball moving at 30 m/s?

• A. 1.7 × 10⁻³⁵ m
• B. 2.2 × 10⁻³⁴ m
• C. 3.1 × 10⁻³³ m
• D. 4.5 × 10⁻³² m