A Hydrogen atom is excited to the n = 9 level. Its decay to the n ...

[brutforce]

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.

[miss.ashley]

Answer to Question 1

A

Answer to Question 2

C

[brutforce]

TYSM

[jackie]

Gracias!