Question

Choose CORRECT statement:-

• A. Electron & proton which are accelerated through same potential difference from rest will have same de-broglie wavelength.
• B. Proton and $\alpha$ particle which are accelerated through same potential difference from rest will have same de-broglie wavelength.
• C. Two particles having same kinetic energy must have same de-broglie wavelength.
• D. Two particles having different momentum may have same de-broglie wavelength.

Answer 1

Answer: (D)

Particles can have same magnitude of momentum but different directions.