Answer :

In this problem we will calculate ground state radius and then then treat the nucleus as point or solid charged sphere.

Let the ground state radius in normal hydrogen atom be


From Bohr equation for angular momentum we have,


--------(1)


And from force balance equation,




Now putting the equation 1 in the above equation we get,



---------(2)


On putting the values of charge and mass of electron and n=1, we get,


Case 1: since the r>R, nucleus is treated as point charge since electron will be outside the proton,




----------(3)


And


On putting the values we get, Total energy = K.E + P.E.




Case 2: since the radius r<R nucleus is treated as the solid sphere with electron orbiting inside it due to which there will be a new orbital radius of the electron at ground state r’,


Charge enclosed by the electron radius in the nucleus


Force acting on the electron will be equal to the centripetal force,




Now, after replacing r with r’ in equation 1, putting it in above equation,




Putting the value of R, we get,



Now







(using equation)


Using the formula for P.E. at point inside the solid charged sphere,




Where is the point inside the sphere and R is the radius of the sphere


on putting the values,




total energy at ground state


Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
caricature
view all courses
RELATED QUESTIONS :

(a) State Bohr’s Physics - Board Papers

The Bohr model foPhysics - Exemplar

Consider an excitHC Verma - Concepts of Physics Part 2

Suppose in an imaHC Verma - Concepts of Physics Part 2

In the Auger procPhysics - Exemplar

A uniform magnetiHC Verma - Concepts of Physics Part 2

Consider a neutroHC Verma - Concepts of Physics Part 2

Light from BalmerHC Verma - Concepts of Physics Part 2

A neutron having HC Verma - Concepts of Physics Part 2

A particle is movPhysics - Exemplar