0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
Why cant you see a laser beam as it crosses the room?
If there is dust in the air you can see it as it hits these particles. By the way, you can't see any form of light, laser or otherwise, as it passes through clean air.
Why cant you see a laser beam if its in pure water?
Because there are no particles large enough to reflect the light back to the viewer.
How can you see the beam from a laser?
Power applied to laser, wavelength & angle of viewing it.
What does laser beam mean?
A laser is the device itself, the beam is.. well, the beam coming out of the laser.
How do you detect a laser beam?
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.
Why cant you see a laser beam as it crosses the room?
If there is dust in the air you can see it as it hits these particles. By the way, you can't see any form of light, laser or otherwise, as it passes through clean air.
Why cant you see a laser beam if its in pure water?
Because there are no particles large enough to reflect the light back to the viewer.
How can you see the beam from a laser?
Power applied to laser, wavelength & angle of viewing it.
How do you get passed the laser beam in the BAD control center?
You cant. But maybe at the end.
What does laser beam mean?
A laser is the device itself, the beam is.. well, the beam coming out of the laser.
How can you get laser?
How can yo u get laser beam?What is laser beam characteristics and principles?
Why can you see a light from a laser beam?
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.
What is caution laser beam?
"Caution Laser Beam" is a phrase used on warning signs and labels to alert users and passersby that a laser beam may be present.
How do you detect a laser beam?
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.
How far away would a beam of light have to be to be able to watch it travel?
This would not be possible for a couple of reasons. First let us set up the following scenario. We will shoot a laser from the Earth to the Moon which will take 1.2 seconds to arrive. You will be observing from 240,000 miles away in a spaceship that is at a right angle to the laser beam. This will make the Moon the same apparent size as it is on Earth. In theory, you should see a laser beam begin from Earth and quickly get longer and longer until it reaches the Moon in 1.2 seconds. The problem is that when we see a laser beam, we are not actually seeing the beam itself, only a small part of the beam reflecting off particles in the laser beam's path. Since space is a vacuum, there are no particles for the beam to reflect off, so we see nothing unless the laser beam is pointed directly at us, which in this case is not. The other problem is that when the laser light is reflected toward us from the particles, it is also scattered and would be much too faint to observe from that distance, even with a telescope.
In a laser printer the beam detect mirror detects the laser beam by reflecting it to a blank?
optical fiber
Why can't I see my laser pointer beam anymore?
Dead battery OR very clean air.
