A hydrogen atom is in its n = 2 excited state when its electron absorbs a photon of energy 8.5 eV. What is the energy of the resulting free electron?
The lowest level energy state of hydrogen is -13.6 eV. (h = 6.626 10-34 J s, 1 eV = 1.60 10-19 J)
A) 5.1 eV
B) 6.6 eV
C) 6.9 eV
D) 7.6 eV
Question 2
A solid nonconducting sphere of radius R carries a uniform charge density throughout its volume. At a radial distance r1 = R/4 from the center, the electric field has a magnitude E0.
What is the magnitude of the electric field at a radial distance r2 = 2R? A) E0/4
B) zero
C) E0/2
D) E0
E) 2E0