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A Proton and a Deuteron Are Accelerated Through the Same Accelerating Potential. Which One of the Two Has the Greater Value of De-broglie Wavelength Associated with It, and Give Reasons to Justify Your Answe - CBSE (Science) Class 12 - Physics

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Question

A proton and a deuteron are accelerated through the same accelerating potential. Which one of the two has the greater value of de-Broglie wavelength associated with it, and Give reasons to justify your answer.

Solution

de-Broglie wavelength of a particle depends upon its mass and charge for same accelerating potential, such that

`lambdaprop1/sqrt((`

Mass and charge of a proton are mp and e respectively, and, mass and charge of a deutron are 2mp and e respectively. where, e is the charge of an electron

`lambda_p/lambda_D=sqrt((m_Dq_D)/(m_pq_p))=sqrt(((2m_p)(e))/((m_p)(e)))=sqrt2`

Thus, de-broglie wavelength associated with proton is`sqrt2` times of the de-broglie wavelength of deutron and hence it is more.

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Solution A Proton and a Deuteron Are Accelerated Through the Same Accelerating Potential. Which One of the Two Has the Greater Value of De-broglie Wavelength Associated with It, and Give Reasons to Justify Your Answe Concept: de-Broglie Relation.
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