scattering
You can only see a beam of light if there are particles around it. So say there was a man standing under a street light, and the world around him was foggy, you could then see the beam of light coming from the street light. And its the same principal with any luminous object. If there's no particle around, then you can't see the beam of light.
By definition, the word "visible" means something you can see. Beware: you cannot see a light ray or beam or photon as it whizzes past you. You only see those rays that enter your eye. In a dusty atmosphere you might say you can see a light beam, but what you see is that part which is scattered into your eyes.
You can see light rays with dust, flour, etc. If you turn on a flashlight, you can drop dust right where the light travels to actually see that beam of light. The same thing happens with red laser beams.
Depends on the amount of scattering. In fog, or in slightly cloudy water, it's easy to see a beam of light. In a vacuum, no scattering effects are seen.
We see light that reflects off of things that are not transparent.
You can only see a beam of light if there are particles around it. So say there was a man standing under a street light, and the world around him was foggy, you could then see the beam of light coming from the street light. And its the same principal with any luminous object. If there's no particle around, then you can't see the beam of light.
If you see the beam, you are seeing the scattered light being reflected off particles in the air. Any light you actually see is no longer laser light, assuming you have sense enough not to look at it directly.
Because of the refraction of the room and the light
you can see the beam a lazer by shining the lazer at a wall with the lights turned off then spraying something of a mist over the lazer beam.
You see things through your eye. All objects reflect light. Therefore, when light from a object reaches you eye it forms an image. This is how you see.
By definition, the word "visible" means something you can see. Beware: you cannot see a light ray or beam or photon as it whizzes past you. You only see those rays that enter your eye. In a dusty atmosphere you might say you can see a light beam, but what you see is that part which is scattered into your eyes.
You can see light rays with dust, flour, etc. If you turn on a flashlight, you can drop dust right where the light travels to actually see that beam of light. The same thing happens with red laser beams.
A detection beam on a microscope is a beam of high energy light. The beam allows individuals to see clearly and in more detail the substance or object under the microscope.
Project a beam of white [complete] light through a prism.
Project a beam of white [complete] light through a prism.
dip beam means that one the front light is not working espicially low light so turn on light then see wich one not working and replace it its too cheep and simple
Yes, you can. Just take a magnifiying glass and focus the beam until you see a concentrated beam of light towards the thing you desire to light on fire.