Human Factors Engineering A light source is placed 3 meters above the center of a circular table with radius 0.6 meters. The light source is an isotropic source of light, and it has flux of 120 lm. This table is used by 32 years old worker in storage area, the speed and accuracy of the work is not important Q) What is the luminance of this source of light on the center of the circular table? A) 4080 cd / m2 B)4001 cd / m2 C)4244 cd / m2 D)None

Human Factors Engineering A light source is placed 3 meters above the center of a circular table with radius 0.6 meters. The light source is an isotropic source of light, and it has flux of 120 lm. This table is used by 32 years old worker in storage area, the speed and accuracy of the work is not important Q) What is the luminance of this source of light on the center of the circular table? A) 4080 cd / m2 B)4001 cd / m2 C)4244 cd / m2 D)None