How Does Exciting a Hydrogen Atom Affect Its Kinetic and Potential Energy?

[sphyics]

1. When a hydrogen atom is excited from the ground state;
a) K.E & P.E both increases
b)K.E & P.E both decreases
c) K.E increase and P.E decrease
d) K.E decrease & K.E increase.

ATTEMPT

K.E$$\propto$$1/n²

P.E$$\propto$$1/n²

so n increases both decreases. >>>>option b is right for me.


but the correct answer given in book is option d

wer I'm wrong

 

[cupid.callin]

the thing you foud for PE is its mag only
write the expression of PE of electron and proton
here you'll see a - sign
so if mag decrease ... due to - sign ... PE inc