Question

A proton and an electron are both travelling at the same speed. What can we conclude about their de Broglie wavelengths?

• A. It is impossible to determine the relative sizes of their wavelengths from the information given.
• B. They will both have the same wavelength.
• C. The wavelength of the proton will be shorter than that of the electron.
• D. The wavelength of the electron will be shorter than that of the proton.

Answer 1

The correct option is D

The wavelength of the electron will be shorter than that of the proton.