The changes brought in the wave length and frequency of light
2006-07-09 05:29:19 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Physics
The velocity decreases, and so does the wavelength. The frequency stays the same. Think about the light as actual waves traveling through the glass. A crest hits the surface every couple of femtoseconds. On the exit face, they are emerging at the same rate. To keep the waves coming at the same rate, they also have to be passing at the same rate inside the glass, but because they're moving more slowly, the crests must be physically closer together.
Incidentally, light does not become redder when it loses energy, There is no direct way to reduce the energy of a photon. A photon passing through a medium is either absorbed or it's not, but its frequency is unchanged. Some media, such as our atmosphere, redden white light by selective absorption or scattering, that is by removing more blue photons than others.
2006-07-09 06:26:24 · answer #1 · answered by injanier 7 · 0⤊ 1⤋
Responder kadazoma is not correct. The frequency remains the same, but the wavelength decreases because the speed of light will be less than it is in a vacuum. If you were to examine the spectrum of a low-pressure sodium lamp using a diffraction grating in a swimming pool, you would find the wavelength of the principal yellow lines (589 nanometers in air) to be shorter, but the lines would still appear to be yellow because, once the light enters the eye, it would be the same as if you were not in the pool.
2006-07-09 06:10:41 · answer #2 · answered by Anonymous · 0⤊ 0⤋
The angle formed between the ray of light and the Normal(perpendicular line on the plan where the ray of light falls on the denser medium) gets bigger.
2006-07-09 05:49:54 · answer #3 · answered by Yoda 2 · 0⤊ 0⤋
The light turns redder because light loses energy when it travels into a denser medium. And less energy means redder.
2006-07-09 06:01:43 · answer #4 · answered by Science_Guy 4 · 0⤊ 0⤋
Good God : Frequency is property of the source of the wave and wavelength of the medium . Please keep these facts only in your mind
2016-03-26 22:38:58 · answer #5 · answered by Anonymous · 0⤊ 0⤋
I think that wavelength decreases and i don't know of frequency.
2006-07-09 05:48:34 · answer #6 · answered by Anonymous · 0⤊ 0⤋
SOME TIMES LIGHT CAN BEND YOU MAY SEE AS JUST A BEAM OF LIGHT BUT ITS A CONTROLLABLE THING AND INFLUENCED BY ITS SUROUNDINGS.MOLEXUK.
2006-07-09 08:07:31 · answer #7 · answered by debandmole 3 · 0⤊ 0⤋