So far contains: Topic 3,4,5,6,7,8,9,10,11,12
| Front | How many nodes does the first harmonic have? |
| Back | 2 |
| Front | What is the formula for Wien's law? |
| Back | T = Wien's constant/Lambda max |
| Front | Why do we use electronvolt as a unit for energy? |
| Back | Photon energies are very small and it is more convenient to use electronvolt than it is to use joules. |