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An a-particle,a proton and an electron h...

An a-particle,a proton and an electron have the same kinetic energy.Which one of the following is correct in case of their de-Broglie wavelength

A

lambda_(alpha)=lambda_(p)=lambda_(eq)

B

lambda_(eq)gtlambda_(e)gtlambda_(e)

C

lambda_(alpha)ltlambda_(p)gtlambda_(e))

D

`lambda_(alpha)ltlambda_(p)ltlambda_(e))

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