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| Q. |
For normal reading the illumination level required is around |
| A. | 20-40 lumens/m2 |
| B. | 60-100 lumens/m2 |
| C. | 200-300 lumens/m2 |
| D. | 400-500 lumens/m2 |
| Answer» B. 60-100 lumens/m2 | |
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