Which visible color enters your eye with the highest frequency?

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Multiple Choice

Which visible color enters your eye with the highest frequency?

Explanation:
Visible light spans a range of frequencies, and the energy of a photon is proportional to its frequency. Within the visible spectrum, frequency increases from red to violet. Since violet has the shortest wavelength in this range (about 380–450 nm), it corresponds to the highest frequency (roughly 7.5×10^14 Hz). The other colors—red, green, and yellow—have longer wavelengths and thus lower frequencies. So violet light entering the eye has the highest frequency among visible colors.

Visible light spans a range of frequencies, and the energy of a photon is proportional to its frequency. Within the visible spectrum, frequency increases from red to violet. Since violet has the shortest wavelength in this range (about 380–450 nm), it corresponds to the highest frequency (roughly 7.5×10^14 Hz). The other colors—red, green, and yellow—have longer wavelengths and thus lower frequencies. So violet light entering the eye has the highest frequency among visible colors.

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