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The ratio between illumination at a working point indoor to total light available simultaneously outdoor is known as
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- Daylight Factor
- Sky Component
- Internally Reflected Component
- Externally Reflected Component
Correct Option: A
In architecture, a daylight factor (DF) is the ratio of the light level inside a structure to the light level outside the structure. It is defined as :
| DF = |  |  | × 100% | |
| Eo |
