Question

Which of the following statements is/are correct?

• A. The unit of Lighting Power Density is $W/m^2$.
• B. The unit of Lighting Power Density is $cd/m^2$.
• C. The unit of Sound Power is $W$.
• D. The unit of Energy Performance Index is $kWh/m^2/year$.

Answer 1

Answer: (A), (C), (D)

The unit of Lighting Power Density is $W/m^2$.

Answer 2

The correct answer is (A and C and D): The unit of Lighting Power Density is $W/m^2$. AND The unit of Sound Power is $W$. AND The unit of Energy Performance Index is $kWh/m^2/year$.