What is a screen? Is it always transparent, translucent or opaque?
Dear Student
In optics screen refers to a surface on which a real image can be obtained . It should be ideally be opaque so that no light can pass through it and should reflect in order to obtain image.
Regards
In optics screen refers to a surface on which a real image can be obtained . It should be ideally be opaque so that no light can pass through it and should reflect in order to obtain image.
Regards