According to Bohr.s theory, E_n = total energy, K_n = kinetic energy, V_n = potential energy, r_n =radius of n^(th) orbit. Match the following.

According to Bohr.s theory, E_n = total energy, K_n = kinetic energy,

1.	According to Bohr.s theory, E_n = total energy, K_n = kinetic energy, V_n = potential energy, r_n =radius of n^(th) orbit. Match the following.
Answer» <html><body><p><br/></p>Solution :According to Bohr.s <a href="https://interviewquestions.tuteehub.com/tag/theory-706806" style="font-weight:bold;" target="_blank" title="Click to know more about THEORY">THEORY</a> , kinetic energy<br/>`(K_n) = (Ze^2)/(2r)` <br/> Potential energy`(V_n) = - (Ze^2)/(r)`, <br/>Total energy `(E_n) =-(Ze^2)/(2r)` <br/>A) `(V_n)/(K_n) = (-Ze^2//r)/(Ze//2r) = - 2` <br/><a href="https://interviewquestions.tuteehub.com/tag/b-387190" style="font-weight:bold;" target="_blank" title="Click to know more about B">B</a>) `r_n prop n^2 and E_n prop <a href="https://interviewquestions.tuteehub.com/tag/1-256655" style="font-weight:bold;" target="_blank" title="Click to know more about 1">1</a>/(n^2) ` , i.e. , `E_n prop 1/(r_n)` <br/><a href="https://interviewquestions.tuteehub.com/tag/c-7168" style="font-weight:bold;" target="_blank" title="Click to know more about C">C</a>) Angular momentum`=sqrt(l(l+1)) (h)/(2pi)` <br/>The lowest orbital is 1s for which l=0 <br/>Hence angular momentum =0<br/>D)` r_n prop 1/Z ` or `1/(r_n)prop Z therefore y = 1`</body></html>