NCERT Example 11.3 - Dual Nature of Radiation and Matter

Question: What is the de Broglie wavelength of a ball of mass 0.12 kg moving with speed 20 m/s?

Answer: λ = **2.76 × 10⁻³⁴ m** (too small to observe).

Full step-by-step NCERT solution with diagrams on Something by Zero.