| 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 |
mr. charles11
