Emissive power of a perfectly black body

What emissive power of perfectly black body ?

At 273^(@)C ,the emissive power of a perfect black body is R . What is its value 0^(@)C ?

What is the absorptive power of a perfectly black body ?

What is the absorptive power of a perfectly black body ?

The absorptive power of a perfectly black body is_____.

State the factors on which emissive power of a body depends. What can you say about the emissive power of perfect black body?

What is absorbing power of a perfectly black body ?

Emissive power of an ideal black body at 127^(@)C is E. the temperature at which it increases to 102% is