Final answer:
The video gives two possible explanations for why white light changes into colored light: dispersion and reflection.
Step-by-step explanation:
There are two possible explanations given in the video for why white light changes into colored light:
c. Dispersion: Dispersion is the process of spreading white light into its full spectrum of wavelengths. It happens because the index of refraction varies slightly with wavelength.
When white light passes through a prism, different wavelengths (or colors) of light are bent by different amounts, resulting in the separation of colors and the formation of a rainbow.
d. Reflection: Reflection can also cause a change from white light to colored light. For example, when white light shines on a film or a soap bubble, some of the light reflects from the top and bottom surfaces of the film, creating interference effects and producing colors.
The video gives two possible explanations for why white light changes into colored light: dispersion and refraction. Dispersion occurs when white light spreads into its full spectrum of wavelengths due to the fact that the index of refraction varies with wavelength.
Refraction happens when light waves change their speed and direction upon passing from one medium to another, like air to water, which also contributes to the separation of white light into its constituent colors.