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Question: question 3 3 marks a ray of light is incident...

Question details

Question 3 (3 marks)

A ray of light is incident on an air/glass interface at an angle of 30o to the normal. Calculate the angle of refraction of the ray in the slab. 

Question 4 (3 marks)

Calculate the critical angle at which a ray of light must hit a glass/air interface to be totally internally reflected. 

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