The light bounces off the object to get into our eyes. Actually there are many beams of light, but they don't all reach to your eyes.
It must enter our eyes.
Lights enters your eyes directly from a light source or it reflects off other objects
Pupil
You only "see" when light enters your eyes. In the dark, there is no light . . . the main reason why we call it "dark". Since there is no light, none can enter your eyes, and you do not see.
You only "see" when light enters your eyes. In the dark, there is no light . . . the main reason why we call it "dark". Since there is no light, none can enter your eyes, and you do not see.
Because the lens has been focused depending on the available light. if you enter a darker room, your eyes have to re-adjust to allow more light through them.
paagal cota
it is to help let as much light into your eyes as possible so you can see the best you can. this is why our pupils enlarge in the dark
not material, but color. the color black absorbs all colors in light and reflects no light to enter your eyes. black is only visible by contrast on other things you can see.
because you are cleaning your eyes and pathogens are all over and they enter you eyes. when they enter your eyes you n.eed to clean them, so you blink
The pupil dialates to allow light to enter the eye and for you to be able to see. If there is no light at all then your eyes can not be used because you need light to see. If there is a little bit of light, close your eyes for 15 seconds so they can adjust to darkness.
Light rays of differing wavelengths enter the eyes and strike the retina which converts them into electrical signals, these signals are sent to the brain where they are reinterpreted as colours and images.