Posted by PEACE :) on Thursday, April 22, 2010 at 2:46am.
From what i understand in this question, white light goes from air through the prism which splits it into red and violet. the question is asking about the angle between red and violet when it comes out in the air from the prism.
i used snells law to find the angle of refraction in the prism first.
going from air to prism
red => 1sin50 = 1.62 sin (theta)
theta (red) = 28.22
violet => 1 sin50 = 1.66 sin (theta)
theta (violet) = 27.48
i tried to use these angles to find the refraction angles from prism to air which gives me 50 again and sounds wrong.
not sure how to go about this problem.
please help.
thankyou
There are are two refractions, you will have to draw a diagram and figure the effect of each refraction.
http://www.physicsclassroom.com/Class/refrn/u14l4a.cfm
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