engineering recuitment PGCIL Junior Technician Trainee (Electrician) Mock Test 2023 Utilization of Electrical Energy Illumination
Define Illuminance.
1
It is defined as the luminous flux received per unit area.
2
It is defined as the flux emitted by the source per unit solid angle.
3
It is defined as the luminuous flux per unit angle from a source of 1 candle power.
4
It is defined as the energy in the form of light waves radiated per second from luminious body.