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Anonymous
Anonymous asked in Science & MathematicsPhysics · 2 months ago

Why isn't ultraviolet radiation a light?

Update:

Or why wouldn't that be a light?

Update 2:

This is a strange question being asked at my school's physics class. Like wth bro?

Update 3:

And it wasn't the teacher nor anyone else who asked this question out loud what could have even been misheard. This odd question is in my physics book.

I might consider telling about this thing to the school staff.

13 Answers

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  • 2 months ago
    Favourite answer

    Because it is just outside the normal spectrum of visible light.

    Electromagnetic radiation in this range of wavelengths is called visible light or simply light. A typical human eye will respond to wavelengths from about 380 to 740 nanometers.

    Ultraviolet (UV) light falls in the range of the EM spectrum between visible light and X-rays. It has wavelengths of about 380 nanometers to about 10 nm.

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  • 2 months ago

    It is..... 👍 It is a form of radiation! 

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  • 2 months ago

    The light is there to 'see', whether our eyes can see it is another issue. Some other animals see UV better than us, others see more infrared. Still amazes me we can detect so much with such a small piece of the spectrum!

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  • Amy
    Lv 7
    2 months ago

    It is light.

    The lens of the human eye is opaque to UV light, but anyone who has had cataracts removed can see it.

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  • goring
    Lv 6
    2 months ago

    All source producing radiation generate a flux of massive particles called Ahor(particle of light)the radiation has its own spectrum of frequencies of particle.

    The frequency that we detect with a mechanism in our eye is called visible light.

    What is not visible with our human eyes is what we call light.

    However animals including snake are able to see infrared radiation because they are able to sense different frequency of radiation.

    The particle of light (Ahor)per se is an invisible substance.

    Utra violet radiation is not visible for the Human eyes because it beyoung the visible range of frequency for humans to see.

    Physics call light by a Greek word called photon.Because its invisible they assume it has no mass volume.

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  • 2 months ago

    Ultraviolet is light. It is not human visible light. we cannot see it but birds can see it.

    Infrared is also not human visible but snakes can see it. It is all technical weird facts about science.

    These are not necessary for human survival so we lost them somewhere in evolution.

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  • 2 months ago

    UV Light is light. It's in the name. Ultraviolet Radiation is just a part of the Electromagnetic Spectrum which is what light is. Light is just waves of Electromagnetic Radiation and Ultraviolet happens to occupy the section of wavelengths between 10nm to 400nm. Ultraviolet Light and Ultraviolet Radiation are the same things.

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  • 2 months ago

    It is a perfectly valid light if you are a bee, a solar cell or a photographic film.  It is merely that HUMAN eyes cannot see it. Nothing to do with physics.  Human anatomy is responsible for human terms.

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  • Anonymous
    2 months ago

    It is, our eyes just do not see it because the atmosphere normally absorbs it.  If you had paid attention in class, you wouldn't have to ask that.

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  • Anonymous
    2 months ago

    Who told you it wasn't?

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