A beam of light reach to a mirror?
116013
do u mean speed? no, the magnitude is stillt he same but the direction is changed if and only if the mirror has a smooth surface. cause if it is not. there would be many angle of reflection
287924
That's because light reflects in the mirror just as if it's coming from the same distance the real object is but behind the mirror.  You are nor looking an image that is at the mirror distance, but really at the real object distance.
812420
if u can trap light in a totally reflective mirror(means which reflect light 100%) and don't make any HOLE in ball it definitely keep on reflecting.\nif mirror is not 100% reflecting it will absorb some portion of light every time light fell on its surface.So after some time light rays will vanish practically.(theoretically light rays will vanish after infinite time)\n \nif yr mirror ball has a hole then there is a probability that light will come out of mirror ball in its journey.\npractically this situation is not possible bcos either second or third situation always applies.
262886
You're looking at an image reflexed 5 feet away while standing 5 feet away. \nSo the image in the mirror would be a total of 10 feet away from you. Want to see it 5 feet away? Move up some more ;)
125793
basic principles of wave propigation. a body in motion tends to stay in motion. if what you're saying is the vacuum is deviod of all matter, including subatomic particles, the wave would continue forever, with one exception. if the beam reflecting around the room collided with itself (say it caught itself in a corner), it would cause sufficient refraction to scatter the beam eventually. photons expend no energy to travel, so the room would stay lit up forever. and man, that would have to be some badass 100% reflective material! ;->
1035026
The image of the laser beam would be moving faster than the speed of light.\n\nHowever, this does not violate Einstein's special relativity (the fact that nothing can travel faster than the speed of light).  The image of the laser beam is not a "thing", i.e. something with mass.
204272
Light travels faster than sound.
1137794
You are looking at a magnifying mirror ;)
545742
Simple answer:\n\nA ray that does go not into your direction doesn't has a chance (unless reflected by something) to go into your eye and be "seen". If it gets reflected in a diffuse way for example by a wall and then goes into your eye you see a bright spot on the wall. If it gets non-diffuse reflected by a mirror you see an image of the bulb.\n\nWelcome to the world of geometric optics ;) ! \n\nIf follow the light ray in the other direction like a "see ray"  you get the principle of all the ray tracing computer programs that produce these nice computer images and animated movies.
435628
sure it has to do w/ the reflection of the light form the sun.
790315
It's an optical effect called a halo
703738
a mirror reflects light and reflects what light reflects off of (like if the light is on, you can be seen in the mirror).  Your shirt also reflects light.  A red shirt absorbs all the colors of light except for red, which is reflected.
670362
Yes it can. If you have two mirrors exactly facing each other, an infinite amount of reflections are made back and forth. You should try it.
824779
No surface can be 100% reflective. If you shot, say a laser at the most reflective surface possible, the reflected light would be less than the original beam.\nThere is no material that can allow light in and no light out. If you did create the sphere, you would need a little hole to aim a light source at, then you would have to close it quickly with the light source still shinning at the hole. Theoretically, with a 100% reflective surface and a vacuum inside the sphere, it would bounce around forever, until you broke it. A small flash would be seen, but the light energy would not compound and blow up.
598668
I've seen somebody got about 400 ºC using little pieces of mirrors over a parabolic structure. Sun light was concentrated in one point
565258
A mirror reflects light.  Light from an object strikes the mirror and changes direction so that the angle of incidence equals the angle of reflection.  As a result, light appears to come from behind the mirror, at an apparent distance equal to the distance they are in front of the mirror.\n\nI see no connection to the Boognish.
963682
*It allows a laser to be viewed - light from the laser cannot be viewed unless it's bouncing off a mirror - a mirror reflects and refracts light\n\n*Allows us to view things from a variety of angles (car mirrors, periscopes, etc)\n\n*Personal hygeine?\n\n*Decorative