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A proton and an electron have same kinet...

A proton and an electron have same kinetic energy. Which one has greater de Broglie wavelength. Justify.

Text Solution

Verified by Experts

de-Broglie wavelength of the particle is `lambda = (h)/(p) = (h)/(sqrt(2mK))`
i.e. `lambda prop (1)/(sqrt(m))`
As `m_(e) lt lt m_(p)`, so `lambda_(e) gt gt lambda_(p)`
Hence protons have greater de-Broglie wavelength
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