b1

Physics 30 Chapter 15 Quiz Name: 3. What electric field will suspend an oil drop with a mass of 5.89 x10-14 kg and a charge of -4e? (Make sure to include the direction) (3) 4. The following diagram shows the energy levels for ionisation no6 hydrogen. -0.54 ev- -0.85 ev 1= 4 a. Determine the total number of possible energies n = 3 emitted as the electron falls from the sixth excited -1.51 ev, state to ground level. (1) -3,39 ev - n= Energy (ev) quantum numbers b. Determine the wavelength of EMR emitted as an electron drops from n=4 to n=2. (2) BONUS: What -13.6 ev ground level n=1 colour of light will be emitted? (0.5)