Multiple choice

When white light is passed through a glass prism, which of the following colours is refracted the most?

  1. Blue

  2. Red

  3. Orange

  4. Violet

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Violet light has the shortest wavelength and highest frequency in the visible spectrum, causing it to deviate (refract) the most when passing through a prism due to dispersion. Red light refracts the least, creating the familiar rainbow spectrum with red on the outer edge.