Author Question: A Hydrogen atom is excited to the n = 9 level. Its decay to the n = 6 level is detected in a ... (Read 64 times)

brutforce · **on:** Jul 29, 2018

A Hydrogen atom is excited to the n = 9 level. Its decay to the n = 6 level is detected in a photographic plate. What is the frequency of the light photographed?

A) 5.08 1013 Hz
B) 5,910 Hz
C) 5,910 nm
D) 3.28 10-9 km

Question 2

A horizontal wire carries a current straight toward you. From your point of view, the magnetic field at a point directly below the wire points

A) directly away from you.
B) to the left.
C) to the right.
D) directly toward you.
E) vertically upward.