1.

A lamp source of 3200 candela is mounted on a wall at a height of 2 meter from the work-plane. It subtends an angle of incidence of 60 with the center of the work plane. The illumination at the centre of the work plane in Lux is __________

A. 90 : 90
B. 100 : 100
C. 80 : 80
D. 70 : 70
Answer» C. 80 : 80


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