The de-Broglie wavelength of an electron is the same as that of a photon. If velocity of electron is $25 \%$ of the velocity of light, then the ratio of K.E. of electron and K.E. of photon will be: - DASH

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Question

The de-Broglie wavelength of an electron is the same as that of a photon. If velocity of electron is $25 \%$ of the velocity of light, then the ratio of K.E. of electron and K.E. of photon will be:

$\frac{1}{4}$

$\frac{8}{1}$

$\frac{1}{8}$

$\frac{1}{1}$

Solution

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