What is Light? |
Contents
Propagation 1 An innocent question | 9 |
Shadows | 12 |
In search of a theory | 13 |
Copyright | |
53 other sections not shown
Common terms and phrases
absorb aether amplitude atom spectrum axis becomes black-body radiation Bottom called colour crystal dark diffraction diffraction pattern dipole direction of motion directions of oscillation distance electric field electron oscillator electron wave emission energy levels equal experiment Fabry-Perot interferometer gas-discharge lamp glass grating Hertz Huygens hydrogen atom interface lamp laser layer length lens light beam light falling light flux light intensity light oscillations light rays light sources light waves linearly polarised magnetic field material measure metal molecules moving observer obtain optical orbit oscillator model parallel beam path difference perpendicular phase phenomena phenomenon photon plane of incidence plate polarised light position prism quantum theory refractive index resonance frequency screen second mirror selective absorption slit smaller sodium vapour solid angle spectral lines spectrum speed of light spherical stilb stimulated emission surface temperature tion transmitted ultra-violet visible wavefront wavelength whole number