Question
click below
click below
Question
Normal Size Small Size show me how
aadg physics
Nature of light
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 |