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An electron and a photon have the same d...

An electron and a photon have the same de Broglie wavelength. Which one of these has higher kinetic energy?

A

Can not determined

B

Proton has more K.E than Electron

C

Both have same K.E

D

Electron has more K.E than Proton

Text Solution

Verified by Experts

The correct Answer is:
D
`lambda = (h)/(sqrt(2 m E)) rArr E prop (1)/(sqrt(m))` `(lambda = constant)`
`because m_(e ) lt m_(p)` So `E_(e) gt E_(p)`
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A2Z-DUAL NATURE OF RADIATION AND MATTER-Section D - Chapter End Test
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