Questions
Which of the following is the example of ideal black body?
a
Kajal
b
Black board
c
A pin hole in a box
d
None of these
detailed solution
Correct option is C
When light incident on pin hole enters into the box and suffers successive reflection at the inner wall. At each reflection some energy is absorbed. Hence the ray once it enters the box can never come out and pin hole acts like a perfect black body.Talk to our academic expert!
Similar Questions
Which of the following curves represents spectral distribution of energy of black body radiation?
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