If a body reflects entire radiation incident on it then it is known as,
- A. Black body
- B. Grey body
- C. White body
- D. Transparent body
Answer: C. White body
Explanation: A body that reflects 100% of the radiant energy falling upon it (reflectivity ρ = 1) is called a white body; a body that absorbs all incident radiation (absorptivity α = 1) is a black body.