Question

within the visible spectrum, red light has: a the longest wavelength and the highest frequency b the shortest wavelength and the highest frequency c the shortest wavelength and the lowest frequency d the longest wavelength and the lowest frequency

Explanation:

The relationship between wavelength and frequency for light is inverse. Red light in the visible spectrum has the longest wavelength among visible - light colors. According to the formula \(c = \lambda
u\) (where \(c\) is the speed of light, \(\lambda\) is wavelength, and \(
u\) is frequency), when the speed of light is constant, a longer wavelength means a lower frequency.

Answer:

A. the longest wavelength and the lowest frequency