What is colour vision?
Q: What is colour vision?
A: Colour vision is the ability of an organism to distinguish objects based on the wavelengths or frequencies of light they reflect, emit, or transmit.
Q: Is colour a property of objects?
A: No, colour is not a property of objects. It is a quality made by the visual brain and so it does not depend upon perception.
Q: Does a 'red' apple emit red light?
A: No, a 'red' apple does not emit red light. It absorbs all the frequencies of visible light shining on it except for a group of frequencies that are reflected which are perceived as red.
Q: How do we perceive colours?
A: We perceive colours through our visual brain which interprets the wavelengths or frequencies of light that are reflected from an object.
Q: Are different wavelengths associated with different colours?
A: Yes, different wavelengths are associated with different colours and this helps us to distinguish between objects based on their wavelength or frequency of light that they reflect, emit, or transmit.
Q: Does perception affect colour?
A: No, perception does not affect colour since it is an objective fact and does not depend upon perception.
Q: What happens when visible light shines on an object?
A: When visible light shines on an object, all the frequencies except for a group of frequencies that are reflected will be absorbed by the object and these frequencies will be perceived as its particular colour.
