उदाहरण के लिए, यदि आप एक खिड़की कह रहे हैं, तो आपको क्या समझना है, एक मीटर और दो मीटर की खिड़की आपको एक छोटे से कमरे जो 3 मीटर और 3 मीटर का है पर्याप्त दिन के उजाले देगी।
What we have to understand if you are providing a window say for example, two meter by one meter window you will get more than enough daylight example for a small room - say 3 meter by 3 meter room with 2 meter by 1 meter window on one side you may get more than enough day lighting if the building is located in equator whereas, the same building if you are designing close to the poles the available light itself is much lesser.