Question

For visible light, which property of visible electromagnetic waves changes with color?

1) Amplitude
2) Frequency
3) Wavelength
4) Amplitude and frequency
5) Frequency and wavelength

Answer 1

The color of visible light is determined by its wavelength and frequency, with each color corresponding to different wavelengths and inversely related frequencies. The correct answer to which properties change with color is frequency and wavelength. The correct answer is option 3.

Step-by-step explanation:

For visible light, the property of the electromagnetic waves that change with color is both the frequency and the wavelength. Color is determined by the wavelength of light, with each color corresponding to a different wavelength. Visible light's wavelength and frequency are inversely related, as described by the equation c = λf where c is the speed of light, λ (lambda) is the wavelength, and f (nu) is the frequency. Therefore, the correct answer to the question is 5) Frequency and wavelength.

For example, in the visible spectrum, red light has a longer wavelength and lower frequency compared to blue light, which has a shorter wavelength and higher frequency. The amplitude of a wave, which is related to the intensity or brightness of the light, does not change with the color or wavelength of visible light.