It discusses some common question and answers about blackbody and its radiation.

1. Fatafat checklist
Blackbody
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What is a
blackbody?
It is an imaginary
object with no
physical
existence.
Who invented the
blackbody?
The German
physicist
Gustav
Kirchhoff
When did he discover
the blackbody?
In 1860
What are the examples
of the black body?
Lamp black,
Graphite &
Platinum
black
Why is the absorbing
power of a blackbody
equal to 1?
It absorbs all the
incident light
without
reflecting none.
What is blackbody
radiation?
It is thermal
electromagnetic
radiation.
What is the factor
affecting blackbody
radiation?
Temperature
What is the emissivity
of a blackbody?
1
Which law measures the
energy of blackbody
radiation?
Planck
quantum law