In an excited state of hydrogen like atom an electron has a total energy of –3.4 eV. If the kinetic energy of the electron is E and its de Broglie wavelength λ , then–
Text Solution
Verified by ExpertsThe correct answer is:
B
The potential energy 
kinetic energy 
.
∴ total energy 
or 
.
Let 
momentum and 
mass of the electron.
or 
de Broglie wavelength, 
.
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