Short answer question (sample) on info learned from last lecture! Very short spectrum of visible light (to humans) in 907284158. 8% $%$% (colour is something that is created by the visual system) Light can be absorbed, diffracted: these principles apply to the entire. Ex: shining light on a black surface = most of the light will be gone as in. = green/blue/yellow/red filters = these filters only let through light of wavelength that we perceive as green/blue/yellow or red respectively. So all the other wavelengths are reduced probably not completely filtered out www. notesolution. com. So in a green filter: everythin8,-847-0/,3/19070/4:90. 0591477003 wavelengths [green light: diffracted: For waves of all sorts 9/40839,;094-09: reflected: Happens on an object = some light absorbed while some is reflected. Ex: brown desk some brown[dark orange] wavelengths reflected back = so you view desk as brown. Purkinie eye-tracking system: these reflection on the eye.