A beam of light consisting of red, green and blue colour is incident on a right-angled prism. The refractive indices of the material of the prism for the above red, green and blue wavelength are 1.39, 1.44 and 1.47 respectively. The prism will:

Explanation

A prism disperses light into its constituent colors due to varying refractive indices for each wavelength. In this scenario, the red light has the lowest refractive index (1.39), followed by green (1.44), and blue (1.47). Because red light will deviate the least, it is likely to separate partially from the green and blue light, which deviate more. The blue light, having the highest refractive index, will deviate the most. Thus, the correct answer is that the prism will 'Separate part of red colour from the green and the blue colour.' The statement in Option D is incorrect as some separation is inevitable due to the nature of dispersion, and Option C is incorrect because complete separation of all colors does not occur in a right-angled prism. Option B is less likely because it suggests a scenario of partial separation for blue, which is less feasible given the context.