When white light is incident on a glass prism the spectrum produced on a screen placed beyond the prism is due to?
Answer Details
When white light is incident on a glass prism, the spectrum produced on a screen placed beyond the prism is due to refraction. White light consists of seven colors of different wavelengths. When white light enters the glass prism, it gets refracted at different angles depending on the wavelength of each color. The different colors are bent at different angles due to the different refractive indices of the prism material for each wavelength. This causes the light to separate into its constituent colors, creating a spectrum. The spectrum ranges from violet with the shortest wavelength, to red with the longest wavelength, with the other colors arranged in between.