Match the items in Column I to those in Column II

Column I	Column II
(a) Dispersion	(p) caused due to atmospheric refraction by different layers of air of varying refractive indices
(b) Angle of deviation	(q) the phenomenon causing advance sunrise and delayed sunset
(c) Atmospheric refraction	(r) refraction of light occurring in atmosphere
(d) Scattering of light	(s) angle between the emergent ray and the normal in a prism
(e) Twinkling of stars	(t) makes clear sky blue in colour
	(u) makes sunrise and sunset reddish
	(v) none

 

In an experiment, a beam of white light gets split into seven colours marked $1$ to $7$ as shown in the figure. The student who carried out this experiment makes the following statement with regard to the experiment:

"The colours, $3$ and $5$ are similar to the colour of the sky and egg yolk respectively." Is this statement correct or incorrect? Justify your answer.

In an experiment, a beam of white light gets split into seven colours marked $1$ to $7$ as shown in the figure. The student who carried out this experiment makes the following statement with regard to the experiment:

Which two positions correspond closely to the colour of (i) danger or stop signal lights; (ii) potassium permanganate solution?