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Wave/particle duality

Q3. A proton and an electron have the same velocity. The de Boglie wavelength of the electron is 3.2 × 10–8 m.

(a) Calculate,

(i) the velocity of the electron,

(ii) the de Broglie wavelength of the proton.

(4 marks)

(b)

(i) State what kind of experiment would confirm that electrons have a wave-like nature. Experimental details are not required.

(ii) State why it is easier to demonstrate the wave properties of electrons than to demonstrate wave properties of protons.

(2 marks)

(Total 6 marks)