Question

If the de-Broglie waves associated with each of the following particles are to have the same wavelength, which particle must have the smallest velocity?

• A. Proton
• B. a-particle
• C. ${}_{1}^{2}H$nucleus (deuteron)
• D. Electron

Answer 1

Answer: (B)

a-particle

Answer 2

l = $\frac{h}{mv}$