Question

The correct sequencing of angle of incidence, angle of emergence, angle of refraction and lateral displacement shown in the following diagram by digits 1, 2, 3 and 4 is: (a) 2, 4, 1, 3
(b) 2, 1, 4, 3
(c) 1, 2, 4, 3
(d) 2, 1, 3, 4

Answer 1

(b) 2,1,4,3 is correct.. .

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Answer 2

Option B is correct.

Explanation:

2, 1, 4, 3 will be the correct sequencing of angle of incidence, angle of emergence, angle of refraction and lateral displacement in the diagram. Please refer to the attached picture for the diagram.

Angle of incidence - angle between the incident ray and the perpendicular to the surface at the point of incidence.

Angle of emergence - angle between the emergent ray and the perpendicular to the surface at the point of emergence

Angle of refraction - the angle between a refracted ray and the normal drawn at the point of incidence to the interface at which refraction occurs.

Lateral displacement - perpendicular distance between the emergent ray and the incident ray produced forward.