1 . F i n d e n e r g y e x p r e s s i o n o f n = 1 t o n = 7 f o r z = 1 2 . F i n d e n e r g y o f p h o t o n r e q u i r e d t o j u m p . n = 1 t o n = 2 n = 2 t o n = 3 n = 3 t o n = 4 n = 4 t o n = 5 n = 5 t o n = 6 n = 6 t o n = 7 n = 7 t o n = 8 Share with your friends Share 0 Sakshi Kanwar answered this Daer Student 1 The expression isE=-13.6[1nf2-1ni2]eV2) from n=1 to n=2E=-13.6[14-1]=3.4*3=10.2eVFor further queries please ask in another threat so that we can help you in abetter way.Regards 0 View Full Answer