Final answer:
The correct order of wavelengths from largest to smallest for the given colors is red, green, and blue (Option A). For other color comparisons, wavelength and frequency have an inverse relationship, and refraction in a medium like water can change the wavelength of light.
Step-by-step explanation:
To answer which laser color has the longest to shortest wavelength, it's important to compare the given wavelengths. A blue laser has a wavelength of 450 nm, a green laser has a wavelength of 560 nm, and a red laser has a wavelength of 660 nm.
Putting these in order from the longest to the shortest wavelength, the correct sequence is red, green, and blue. Therefore, the answer is Option A. Red, Green, Blue.
When it comes to colors of light waves such as yellow, blue, and red, we can order them by wavelength and frequency. For wavelengths, from shortest to longest, it would be blue, yellow, and red. As for frequency, which is inversely related to wavelength, the order from lowest to highest would be red, yellow, and blue.
Speaking of the change of wavelength due to refraction, when a green laser with a wavelength of 550 nm enters water (with a refractive index of 1.33), its wavelength decreases.
The actual calculation for the new wavelength would involve dividing the original wavelength by the refractive index of water, which would give us a shorter wavelength inside the water compared to the air.