Why is laser more monochromatic than ordinary light?
Why is a laser more coherent and more monochromatic than ordinary light?
Why no real source of light can ever be truly monochromatic? Why can't two independent monochromatic sources of light produce a sustained interference pattern? Why are shorter wavelengths of light scattered more than longer wavelengths? What is the wavelength of monochromatic light? Is laser perfectly unidirectional? Why does light posses a dual nature of both wave and particle only and nothing else? Would the colors of light separate out, if a light source in any medium other than vacuum, streams a beam of light through the medium to infinity? If people were able to see a broader spectrum of light, would we perceive more colors? Do lasers emit polarized light? Does laser light have mass? Why a shorter wavelength bends more than the longer wavelength when a ray of white light passess through a prism? Why would one eye see different colors than the other? Why does light bend towards normal and not away from normal when traveling from a rarer to a denser medium? Why is light not matter? Why is light the shortest wavelength within the visible spectrum? Why does the longest wavelength of light bend less? Is light made up only of photons? Why intensity of all bright fringes are same in interference? LIGO uses laser light, but why are the lasers not altered by the gravitational waves? How do photons have colors? When light travels from one medium to another, its speed changes, why is this so? What is a laser? What is color of red color laser beam in empty space? Why we say "Photons travel with the speed of light", when it depends on the wavelength of the photon? Can we use laser as street light? Why is a shorter wavelength of light needed to observe small particles or organisms that are not visible to the naked eye? How does the focal length of a lens change according to the colour of light? Why does the speed of light vary between different mediums? Does a single photon refract? If you have two photons with equal wavelengths and one has a bigger amplitude, what would that mean, would the photon have more energy?