When you are reading, you are more interested in the amount of light falling on your
notebook, than the brightness of the source. How would you ensure that you get
sufficient light on your notebook from a source in your room? who will give answer I will him or her as branliest
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every people have different suggestions about how much amount of light they need.. for example some set of people like to read with bright light which will make them to concentrate more only on the book, where as some set of people will also be able to read it with dim light without straining their eyes.. .so the amount of light sufficient on your notebook from a source defer from a person to a person..
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