Scelta multipla
When light is shined on an object, which of the following can occur?
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9. Quantum Mechanics
Wavelength and Frequency
Scelta multipla
Which of the following colors of visible light has the shortest wavelength?
A
Red
B
Blue
C
Green
D
Violet
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Recall that visible light is part of the electromagnetic spectrum, and different colors correspond to different wavelengths.
Understand that the wavelength of visible light ranges approximately from 400 nm (violet) to 700 nm (red), with violet having the shortest wavelength and red the longest.
Identify the colors given in the problem: Red, Blue, and Green, and compare their typical wavelength ranges: Red (~620-750 nm), Green (~495-570 nm), Blue (~450-495 nm).
Recognize that among Red, Blue, and Green, Blue has the shortest wavelength, but the problem states the correct answer is Violet, which has an even shorter wavelength (~380-450 nm) than Blue.
Conclude that Violet light has the shortest wavelength in the visible spectrum, shorter than Red, Blue, and Green.
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