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A proton and an alpha particle have kinetic energies in the ratio 16 : 1. Assuming that mass of alpha particle is equal to four times the mass of a proton, the ratio of de Broglie's wavelength of proton to that of alpha particle is... 1) 1 : 4 2) 1 : 2 3) 2 : 1 4) 4 : 1


A proton and an alpha particle have kinetic energies in the ratio 16 : 1. Assuming that mass of alpha particle is equal to four times the mass of a proton, the ratio of de Broglie's wavelength of proton to that of alpha particle is...
1)    1 : 4
2)     1 : 2
3)     2 : 1
4)     4 : 1


Grade:10

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