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What is ideal black body? Does it exists?

  1. shwetha123 profile image72
    shwetha123posted 6 years ago

    What is ideal black body? Does it exists?

  2. lobobrandon profile image89
    lobobrandonposted 6 years ago

    a blackhole is almost ideal. Ideal doesn't exist

  3. leeba ann varghes profile image75
    leeba ann varghesposted 6 years ago

    A black body is a substance that absorbs almost  all the radiations falling on it,and reflects none.As the name implies,an ideal black body is an ideal substance that absorbs all radiations falling on it and reflects none ,ie.0%.Practically,there is no substance like that.
    Most approximate example of an ideal body is Lampblack,or powdered carbon.It reflects only less than 2 percent of radiations falling on it.

  4. kripkrip420 profile image60
    kripkrip420posted 6 years ago

    A black body, in the sense it's described, is an ideal object, meaning that it does not exist "perfectly" in our universe as far as we know. However, there is a substance that was created by the Japanese using carbon nanotubes that absorbs approximately 98-99% of all radiation.