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What is the role of the peer group in the life of school-age children?
Absolute Thresholds
The minimum intensity of a stimulus that one can perceive at least 50% of the time.
Colour Hue
The quality of a color determined by its dominant wavelength, making it distinguishable as red, green, blue, etc.
Light Wave
An electromagnetic wave visible to the human eye, responsible for the perception of light and color.
Wavelength
The distance between successive crests of a wave, often used to describe the properties of light and sound waves.
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