1.

Energy of electron of hydrogen atom in second Bohr orbit is [MP PMT 2000]

A.        \[-5.44\times {{10}^{-19}}J\]      
B.        \[-5.44\times {{10}^{-19}}\,kJ\]
C.        \[-5.44\times {{10}^{-19}}\,cal\]      
D.        \[-5.44\times {{10}^{-19}}\,eV\]
Answer» B.        \[-5.44\times {{10}^{-19}}\,kJ\]


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