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I know because as long as there is no physical obstruction between a light-source and my eyes,

and my eyes are open, I can always tell instantly whenever the source is activated or deactivated,

without touching anything or getting any hints. I do that by seeing the light, and my instantaneous

correct responses prove that it works.

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Q: How do you know you can see light waves?
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Related questions

4 animals that can see wave not visible?

Birds & bees (ultraviolet light waves), snakes (heat waves) and I don't know a 4th.


What waves do the sun release?

As far as I know light and heat waves.


What waves include the waves that your eyes see as different colors?

Visble Light


What are ultraviolet waves?

Light waves that are of slightly higher frequency than you can see.


What are the waves called that have more energy than light you can see?

Sound because it has more waves than light.


Difference between infrared waves and red light waves?

Infrared waves have longer wavelengths compared to red light waves. The wavelengths of infrared waves are too long for the naked eye to see, while red light waves can be seen as part of visible light.


What are two light energy waves that you can't see?

The two ligh energy waves that you can't see are ultra-violet (UV), and infra-red (IR). Ultra-violet light waves are measured at 380nm and below, infra-red light waves are 750nm and above. Normal light that you can see resides between these two regions.


How do you differentiate light waves from sound waves?

You can see light waves (or particles . . .) but you cannot hear them. sound must travel thru matter , light can travel thru vacuum


Why is heat energy harder to see then light energy?

Our eyes do not respond to heat waves, which is why we cannot see them. Light waves, on the other hand, are detected by our eyes and this makes us see.


What is electronic waves that people can see?

Visible light.


What is a light wave?

Visible light waves are the only electromagnetic waves we can see. We see these waves as the colors of the rainbow. Each color has a different wavelength. Red has the longest wavelength and violet has the shortest wavelength. When all the waves are seen together, they make white light.


Are microwave ovens light rays longer or shorter than light rays you can see?

Longer than light waves you can see.