Proton and an α -particle Are Accelerated Through the Same Potential Difference Which One of the Two Has Greater De-broglie Wavelength - Physics

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A proton and an α -particle are accelerated through the same potential difference. Which one of the two has greater de-Broglie wavelength Justify your answer.

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The de Broglie wavelength is related to the accelerating potential as



And `lambda_alpha=h/sqrt(2m_alphae_alphaV)`


Now, mass and charge of α particle is greater than that of proton.

∴ λp > λα for the same potential difference.

Concept: de-Broglie Relation
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2015-2016 (March) All India Set 3 N

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