(a) Draw a ray diagram to explain the term angle of deviation. (b) Wgy do the component colours of incident white light cplit into a spectrum whilepassing through a glass prism, explain. (c) Draw a labelled ray diagram to show the formation of a rainbow.

(a) Draw a ray diagram to explain the term angle of deviation. (b) Wg

1.	(a) Draw a ray diagram to explain the term angle of deviation. (b) Wgy do the component colours of incident white light cplit into a spectrum whilepassing through a glass prism, explain. (c) Draw a labelled ray diagram to show the formation of a rainbow.
Answer» Solution :(a) Angle of deviation is the angle between extended incident ray and extendent emergent ray through a PRISM. PQ = Incident Ray, RS = Energy Ray `angle D=` Angle of Deviation (B) The incident white light splits into a SEVEN coloured spectrum as speed of different coloured light waves is different when these pass through the prism. (C)