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  4. If the de-Broglie wavelength is λ 0 for protons accelerated through 100 V , then the de-Broglie wavelength for alpha particles accelerated through the same voltage will be

Q. If the de-Broglie wavelength is for protons accelerated through , then the de-Broglie wavelength for alpha particles accelerated through the same voltage will be

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Solution:

De-Broglie wavelength is
Therefore, de-Broglie wavelength for protons.

and de-Broglie wavelength for alpha particles


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