Multiple choice

The coloured light having maximum speed in glass prism is

  1. Red

  2. Blue

  3. Yellow

  4. Green
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

In a dispersive medium like glass, the refractive index is higher for shorter wavelengths. Since red light has the longest wavelength, it experiences the lowest refractive index and thus travels the fastest.

Keep practicing — related questions