The eye of an animal has only two types of cones. The response of the two cones

Question

The eye of an animal has only two types of cones. The response of the two cones is shown as a function of frequency in the figure. Six different frequency lights (1-6) are also shown. The following questions refer to this figure. a) Can this eye distinguish the difference in hue between frequency 1 & 3? Why? b) Can this eye distinguish the difference in hue between frequency 4 & 5? Why? c) What color would color 3 appear. Why? d) Give two color combinations (metamers) that appear the same color as color 3. Why? e) What would be the compliment to color 5? Why?

Explanation / Answer

1.) Answer: Yes , because the difference between the frequencies of 1 and 3 is considerably enough for eye to distinguish between them

2.) Answer: A hue refers to a pure color . NO, the eye will not be able to distinguish between the hue of 4 and 5 since they are the shades of the same colour .

3.) and 4.) Answer :3 would appear to be a mix of colour of the two intersecting frequencies of light ( probably red (left) and green (right) ). because it lies on the intersection of the frequency curves of the two colours.

5.) colour 5 would be blue or violet , since its frequency is highest among the visible colours.

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