WAEC Physics 2017 Theory — Question 21

Question 21 of 33 from the West African Examinations Council (WAEC) Physics 2017 Theory paper, with the correct answer and a full explanation.

10(b)(ii) List two factors that determine the deviation of a ray of light travelling from air to a triangular glass prism.

Model answer

Factors that determine the deviation include: the angle of incidence of the incident ray; the refractive index of the glass prism; the refraction angle, A, of the prism (any two).

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