Is light invisible??
[From: ] [author: ] [Date: 12-08-18] [Hit: ]
-Light is a form of radiation which carries energy in packets called photons, and using waves.It doesnt just transmit visible light but heat as well, and it is very real.Now if you are asking about the requirement of having an observer to determine an outcome of quantum effects, the observation doesnt have to be made exclusively by sight.......
Suntans and sunburns are caused by the UV radiation, which is invisible to us. Even if light is not being observed, the radiation is still present, how we view and interpret the radiation depends on our eyes.
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Light is a form of radiation which carries energy in packets called photons, and using waves. It doesn't just transmit visible light but heat as well, and it is very real. Now if you are asking about the requirement of having an observer to determine an outcome of quantum effects, the observation doesn't have to be made exclusively by sight.
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There still IS someone there to "observe it". The observer is just not using eyes to absorb the "light", but rather the person's skin cells are absorbing the ultraviolet radiation.
UV radiation isn't actually light. It is the same "stuff" as light, but higher in frequency than visible violet light.
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Light is part of the electromagnetic spectrum; and operates along a wide range of frequencies. When you say no one observes any light, what type of light are you talking about?
You can see X rays, but that's a form of light.
You can't see the light that emanates from the end of your TV remote (infrared) when you change the channel.
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Light radiations are those which are visible whether someone is present or not.
If radiations are not visible then these may be other types than light.
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Your confusing some old philosophic question with scientific truth.
Radiation, weather it's light, sound, or other, does not require an observer to make it so.
