Urgently needed answer friends and teachers!!!!!!Ground state energy o

1.	Urgently needed answer friends and teachers!!!!!!Ground state energy of H-atom is -E1 , the velocity of photoelectrons emitted when photon of energy E2 strikes stationary Li2+ ion in ground state will be...??ans is v= √2(E2- 9E1)/m ...plzz tell how??
Answer» ANSWER: we know v= (2* pi * e^2 z)/ ( n H) replacing VALUE of CONSTANT.. v= 0.02* (z/n) amstong

Urgently needed answer friends and teachers!!!!!!Ground state energy of H-atom is -E1 , the velocity of photoelectrons emitted when photon of energy E2 strikes stationary Li2+ ion in ground state will be...??ans is v= √2(E2- 9E1)/m ...plzz tell how??

Answer»

we know

v= (2* pi * e^2 *z)/ ( n* H)

replacing VALUE of CONSTANT..

v= 0.02* (z/n) amstong