The binding energy of a H-atom considering an electron moving around a fixed nuclei (proton), is `B = - (me^(4))/(8n^(2)epsi_(0)^(2)h^(2))` (m= electron mass) If one decides to work in a frame of refrence where the electron is at rest, the proton would be movig around it. By similar arguments, the binding energy would be : `B = - (me^(4))/(8n^(2)epsi_(0)^(2)h^(2))` (M = proton mass) This last expression is not correct, becauseA. n would not be integralB. bohr- quantisation applies only to electronC. the frame in which the electron is at rest is not inertialD. the motion of the proton would not be in circular orbits, even approximately

The binding energy of a H-atom considering an electron moving around a

1.	The binding energy of a H-atom considering an electron moving around a fixed nuclei (proton), is `B = - (me^(4))/(8n^(2)epsi_(0)^(2)h^(2))` (m= electron mass) If one decides to work in a frame of refrence where the electron is at rest, the proton would be movig around it. By similar arguments, the binding energy would be : `B = - (me^(4))/(8n^(2)epsi_(0)^(2)h^(2))` (M = proton mass) This last expression is not correct, becauseA. n would not be integralB. bohr- quantisation applies only to electronC. the frame in which the electron is at rest is not inertialD. the motion of the proton would not be in circular orbits, even approximately
Answer» Correct Answer - C In the frame of reference, where electron is at rest the given expression cannot be true for binding energy as the frame in which electron is at rest would not be inertial. In hydrogen atom, electron revolving around a fixed proton nucleus has some centripetal acceleration.