MCQOPTIONS
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MCQOPTIONS
| 1. |
Luminous efficiency of a fluorescence lamp is |
| A. | 70 lumens / watt. |
| B. | 60 lumens / watt |
| C. | 40 lumens / watt |
| D. | 30 lumens / watt |
| Answer» D. 30 lumens / watt | |