To estimate how many different colors a human can see, we can consider the fact that the human eye has three types of cone cells, each sensitive to a different range of light wavelengths (red, green, and blue). If we assume that each type of cone can detect about 100 different shades, we can calculate the total number of possible colors by combining the shades detected by each type of cone.
The total can be estimated as follows:
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If there are 100 shades for the red cones, 100 shades for the green cones, and 100 shades for the blue cones, the number of different colors would be:
\[ 100 \text{ (red)} \times 100 \text{ (green)} \times 100 \text{ (blue)} = 1,000,000 \text{ colors} \]
Therefore, the best answer from the choices given is:
C. 1,000,000
1 answer