Q. Luminous flux is: (Solved)
1. the rate of energy radiation in the form of light waves
2. the part of light energy radiated from light source
3. measured in lux
4. both a and c
- a. the rate of energy radiation in the form of light waves
1. the rate of energy radiation in the form of light waves
2. the part of light energy radiated from light source
3. measured in lux
4. both a and c