The diagram shows two thin light rays, P followed by Q, travelling through the same prism. Beams P and Q both strike the same point on the prism and do so at the same angle. Which row gives the correct comparison between beams P and Q?
- Adispersion: only Q is dispersed; nature of light: P is monochromatic and Q is white light
- Bdispersion: only Q is dispersed; nature of light: P is white light and Q is monochromatic
- Cdispersion: only P is dispersed; nature of light: P is monochromatic and Q is white light
- Ddispersion: only P is dispersed; nature of light: P is white light and Q is monochromatic