The wavelength range 400-430 nm corresponds to which color?

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Prepare for the Chemistry 1LC Practical Test. Engage with multiple choice questions, interactive flashcards, and detailed explanations to enhance your understanding and boost your confidence for the exam.

Multiple Choice

The wavelength range 400-430 nm corresponds to which color?

Explanation:
Color from light is determined by wavelength. Shorter wavelengths at the violet end of the visible spectrum are perceived as violet, while longer wavelengths shift toward blue, green, yellow, orange, and finally red. The range 400–430 nm sits at the extreme short end of visible light, which our eyes interpret as violet. In contrast, blue appears at slightly longer wavelengths (around 450 nm), green at 495–570 nm, and red at 620–750 nm, so this 400–430 nm band is correctly identified as violet.

Color from light is determined by wavelength. Shorter wavelengths at the violet end of the visible spectrum are perceived as violet, while longer wavelengths shift toward blue, green, yellow, orange, and finally red. The range 400–430 nm sits at the extreme short end of visible light, which our eyes interpret as violet. In contrast, blue appears at slightly longer wavelengths (around 450 nm), green at 495–570 nm, and red at 620–750 nm, so this 400–430 nm band is correctly identified as violet.

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