Question

Proton and $\alpha$ particle have the same deBroglie wavelength. Which one is the same for both of them ?

• A. mass
• B. energy
• C. speed $\theta$
• D. momentum

Answer 1

Answer: (D)

momentum

Answer 2

As $\lambda \, \propto \frac{1}{p} \, \therefore$ momentum is some for both