# A Proton and a Deuteron Are Accelerated Through the Same Accelerating Potential. Which One of the Two Has Less Momentum? - Physics

A proton and a deuteron are accelerated through the same accelerating potential. Which one of the two has less momentum?

#### Solution

Momentum

p=h/lambda

or pprop1/lambda

where, h = plank's constant

As the wavelength of a proton is more than that of deutron thus, the momentum of a proton is lesser than that of deutron. Hence, the momentum of proton is less.

Concept: Einstein’s Equation - Particle Nature of Light
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