2007-09-07 13:44:23 · 4 answers · asked by roni 1 in Science & Mathematics ➔ Chemistry
Yes it should, but at rest it doesn't so we say NO; light doesn't have mass and volume, although it exhibits the proprieties of an item that does.
Gravity is a property of mass and gravity can bend light waves, this has been proven many times.
Solar sales have been designed that use huge sheets of Mylar to get propulsion form light pressure.
According to Wikipedia: http://en.wikipedia.org/wiki/Photon
"The photon differs from many other elementary particles, such as the electron and the quark, in that it has zero rest mass.
Apart from energy a photon also carries momentum and has a polarization. It follows the laws of quantum mechanics, which means that often these properties do not have a well-defined value for a given photon."
But, we have never seen a photon at rest and when it moves it has a positive mass.
According to the same article:
"In empty space, the photon moves at (the speed of light) and its energy and momentum are related by , where is the magnitude of the momentum. For comparison, the corresponding equation for particles with a mass is , as shown in special relativity."
Momentum is another property of mass, if an item has mass then it has to have a volume to contain it. However or all intents and purposes the mass and volume of light is ignored.
2007-09-07 13:58:23 · answer #1 · answered by Dan S 7 · 0⤊ 0⤋
Light does have a mass it is composed of electrons and photons. Each photon weights 1.2 x 10-67 g. And, no light does not have a volume
2007-09-07 13:54:36 · answer #2 · answered by Anonymous · 0⤊ 1⤋
the light is a radiation of photons ,check out on the net for cuantic mecanic to learn more
2007-09-07 13:50:26 · answer #3 · answered by catabotis 2 · 0⤊ 0⤋
No, light is considered energy, therefore doesn't have any physical properties.
2007-09-07 13:53:39 · answer #4 · answered by doorothie 1 · 0⤊ 0⤋