Question

Arrange the following colours in ascending order of their deviation through the prism.

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

Answer 1

• When white light passes through a prism, it refracts and splits into its constituent colours.
• The angle of deviation for each colour depends on the wavelength.
• Light wave of a larger wavelength deviates less and that of a smaller wavelength deviates more
• Thus, the correct order is Red, Yellow, Green, Blue, Violet.