(i) the refraction index of its material, and 

(ii) the wavelength of incident light

Solution:

(i) For a given angle of incidence, a prism with a higher refractive index produces a bigger deviation than a prism with a lower refractive index.

(ii) The refractive index of a transparent medium varies depending on the colour of the light. It diminishes as the wavelength of light increases. As a result, the refractive index of a prism’s material for visible light is highest for violet and lowest for red. As a result, a certain prism deviates the violet light the most and the red light the least.