Problem#2 You want to read a book in your room. To do so, you will hang a lamp of 600 Lumens from the ceiling. You can change the length of the electric wire to better serve your purpose. If you want to have at least an illuminance of 50 lux, what will be the minimum distance between the lamp and you to achieve this goal? Distance

Problem#2 You want to read a book in your room. To do so, you will hang a lamp of 600 Lumens from the ceiling. You can change the length of the electric wire to better serve your purpose. If you want to have at least an illuminance of 50 lux, what will be the minimum distance between the lamp and you to achieve this goal? Distance