1. What is the energy of a photon with frequency of 4x1014Hz? h=6.6x10-34J.s
2. Which one of the following direct jumps in hydrogen atom results in emission .of a photon with the biggest energy?
A jump from sixth level to the second level
A jump from the third level to the second level
A jump from the fourth level to the second level
a jump from the fifth level to the second level