Is Light a substance of particulate matter?
light is considered to have both wave and particle nature,according de brogelie's principle. actually this was among the greatest controversial issues in the scientific society. there were evidences demonstrating the presence of wave nature and particle nature,because of the strong evidences it was finally given double identity,which now we call Scientifically as DUAL NATURE OF LIGHT
Contrary to the first post, light does NOT carry mass it DOES carry energy, and hence momentum. E=mc^2 is the equation for the rest mass of an object, photons can't possibly have rest mass as by their very nature they're moving The proper equation would be E=sqrt(p^2*c^2+m^2c^4) where that m is the rest mass, which the photon does not have. Hence E=p*c, so yes light has momentum, and sufficient intensity light could in theory knock you on your ***. Pressure from the high energy radiation(ie light) emitted by the sun is what holds it up in the first place
The simple answer is no. It is transmitted energy rather than matter. The complex answer is the there is not such a clear distinction between particals of matter (which have frequencies and wavelengths) and and waves of energy (which are composed of units called photons). Light travels as a wave, but interacts in units of energy (photons). One could argue that a photon is a partical of light, but note that a photon doesn't fit any common notion of what particulate matter is. When we catch a photon, we destroy it (bumping up the energy level of an electron). But when we release energy (as in an electron entering into an atom's orbit) a new photon is created.
The first answerer is a bit mislead. Einstein's formula did not deal with light itself...but rather the speed of light. E=mc^2 Energy = mass * (speed of light)^2 Bit of a difference. I'm not sure about your question, however. It is interesting, indeed. After all, are you talking about the radiation from the sun that we perceive as light? Or are you talking about light in general? If the latter, I would have to say that light is beyond comprehension if approached from a substance standpoint. After all, it seems to me that light is more of a perception of human senses rather than a matter with physical properties.
light is energy. it's has both wave and matter properties. when it's not stop, it's energy. when it is stop, it has a mass and therefore a matter. the wave property of light can be determine in a slit experiment and it's matter property is determine in einsteins photo-electric experiment. light also have different properties as determine in newton's prism experiment and has a visible range and an invisible range. in the visible range, it's a rainbow. invisible range can be x-ray or ultraviolet rays.
