An alpha particle, a proton and an electron are moving with equal kinetic energy. Which one of these particles has the longest de Broglie wavelength? Give reason.

An alpha particle, a proton and an electron are moving with equal kine

1.	An alpha particle, a proton and an electron are moving with equal kinetic energy. Which one of these particles has the longest de Broglie wavelength? Give reason.
Answer» SOLUTION :`LAMDA= (h)/(SQRT(2mE)), lamda prop (1)/(sqrtm)` `m_(alpha) gt m_(p) gt m_(E )` `lamda_(e ) gt lamda_(p) gt lamda_(alpha)` `therefore` electron has longest wavelength, because of smaller MASS.

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An alpha particle, a proton and an electron are moving with equal kinetic energy. Which one of these particles has the longest de Broglie wavelength? Give reason.

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