What is the order of the seven colours (from most deviated to least deviated) that we see after dispersion through a glass prism?
What is the order of the seven colours (from most deviated to least deviated) that we see after dispersion through a glass prism?
The correct option is B Violet, indigo, blue, green, yellow, orange, red
Light undergoes refraction when it enters the prism obliquely. The extent of deviation depends on the wavelength. Therefore different colours undergo deviations at different angles and get separated. Light with the smallest wavelength deviates the most and the one with the larger wavelength deviates the least as shown in the figure below.
Among the 7 constituent colours of light, violet light has the least wavelength and hence it deviates the most and red light having the largest wavelength deviates the least. Hence, the required order is violet, indigo, blue, green, yellow, orange, red (VIBGYOR).
Violet, indigo, blue, green, yellow, orange, red
Light undergoes refraction when it enters the prism obliquely. The extent of deviation depends on the wavelength. Therefore different colours undergo deviations at different angles and get separated. Light with the smallest wavelength deviates the most and the one with the larger wavelength deviates the least as shown in the figure below.
Among the 7 constituent colours of light, violet light has the least wavelength and hence it deviates the most and red light having the largest wavelength deviates the least. Hence, the required order is violet, indigo, blue, green, yellow, orange, red (VIBGYOR).
