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The de - Broglie wavelength of a particl...

The de - Broglie wavelength of a particle moving with a velocity `2.25 xx 10^(8) m//s` is equal to the wavelength of photon. The ratio of kinetic energy of the particle to the energy of the photon is (velocity of light is `3 xx 10^(8) m//s`

A

`1//8`

B

`3//8`

C

`5//8`

D

`7//8`

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