Question

The colour of light which travels with maximum speed in glass is

• A. Blue
• B. Green
• C. Violet
• D. Red

Answer 1

Answer:

D. Red

• When light enters a medium like glass, it slows down compared to its speed in a vacuum. However, not all colors slow down by the same amount. This is due to a phenomenon called dispersion. • In any medium like glass, the speed of light is dependent on its wavelength. Red light has the longest wavelength among the colors of the visible spectrum (VIBGYOR), while violet light has the shortest.