Q. A perfect black body is one which (Solved)
1. is black in colour
2. reflects all heat
3. transmits all heat radiations
4. absorbs heat radiations of all wave lengths falling on it
- d. absorbs heat radiations of all wave lengths falling on it
1. is black in colour
2. reflects all heat
3. transmits all heat radiations
4. absorbs heat radiations of all wave lengths falling on it