Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and the Yahoo Answers website is now in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.

Trending News

Promoted
?
Lv 6
? asked in Science & MathematicsPhysics · 4 years ago

If you can reflect visible light with a mirror, can you build a mirror for other forms of EM radiation? I mean, why couldn't you?

2 Answers

Relevance
  • Anonymous
    4 years ago

    You can.

    HOWEVER.....for lower wavelengths than the visible spectrum, optics need to be made from something other than glass because it absorbs rather than reflecting....ditto for higher wavelengths....for IR we typically use calcium fluoride, magnesium fluoride, zinc selenide, germanium, and silicon.....and for UV, lithium fluoride works well....

  • ?
    Lv 7
    4 years ago

    A mirror probably works well enough for plenty of the other invisible wavelengths.

Still have questions? Get your answers by asking now.