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For normal reading the illumination level required is around | |
A. | Â 20-40 lumens/m2 [Wrong Answer] |
B. | 60-100 lumens/m2 [Correct Answer] |
C. | ÂÂ 200-300 lumens/m2 [Wrong Answer] |
D. | 400-500 lumens/m2 [Wrong Answer] |