From the figure, you can conclude that
A) the wave travels slower in the medium to the left of the interface than in the medium to the right of the interface.
B) the wave travels faster in the medium to the left of the interface than in the medium to the right of the interface.
C) the wave is traveling with the same speed on both sides of the interface.
D) the angle of incidence is equal to the angle of refraction.
E) total internal reflection is not possible for a wave traveling from left to right.

Question

From the figure, you can conclude that
A) the wave travels slower in the medium to the left of the interface than in the medium to the right of the interface. 
B) the wave travels faster in the medium to the left of the interface than in the medium to the right of the interface. 
C) the wave is traveling with the same speed on both sides of the interface. 
D) the angle of incidence is equal to the angle of refraction. 
E) total internal reflection is not possible for a wave traveling from left to right.

Quizplus · Accepted Answer

The figure shows a wave that is traveling from left to right and is incident on an interface between two mediums. The direction of the wave changes as it passes through the interface, indicating that the speed of the wave has changed. The angle of incidence is not equal to the angle of refraction, so D is incorrect. There is no information in the figure that suggests total internal reflection is not possible, so E is also incorrect. Because the wave changes direction as it passes through the interface, the speed of the wave is different on both sides of the interface. Therefore, the correct answer is A.

From the Figure, You Can Conclude That