| Question |
Answer |
| Which theory, waves or particle of light, is the one that scientists currently believe is correct? | wave - particle duality. |
| What is the value of the Planck's constant? | 6.63 x 10^-34 |
| What is the equation for the energy of the photons? | E = hf |
| What is the equation for the radiation flux? | F = P / A |
| What is the name give to the particles of light? | Photons |
| What is the equation for the speed of wave? | speed = wavelength / time |
| Points that are a whole wavelength apart oscillate . . . | in phase |
| Points that are wavelength / 2 apart oscillate in . . . | antiphase |
| What is the principle of superposition? | Where two or more waves meet, the total displacement at any point is the sum of the displacements that each individual wave would cause at that point. |
| What is the lowest frequency at which resonance occurs? | Fundamental Frequency OR First Harmonic |
| What is a standing wave? | Intereference between two waves travelling in opposite directions. |
| When does resonance occur? | When the frequency of vibration of the cord is increased. |
| The angle of incidence is equal to . . . | The angle of reflection |
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