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» Solution :According to Bohr.s THEORY , kinetic energy `(K_n) = (Ze^2)/(2r)` Potential energy`(V_n) = - (Ze^2)/(r)`, Total energy `(E_n) =-(Ze^2)/(2r)` A) `(V_n)/(K_n) = (-Ze^2//r)/(Ze//2r) = - 2` B) `r_n prop n^2 and E_n prop 1/(n^2) ` , i.e. , `E_n prop 1/(r_n)` C) Angular momentum`=sqrt(l(l+1)) (h)/(2pi)` The lowest orbital is 1s for which l=0 Hence angular momentum =0 D)` r_n prop 1/Z ` or `1/(r_n)prop Z therefore y = 1`