In a Laboratory Experiment, a Rectangular Tank Made of a Transparent

question 45

Multiple Choice

In a laboratory experiment, a rectangular tank made of a transparent solid is filled with an unknown liquid. A submersible laser is placed in the tank, with the beam directed toward the liquid-solid interface at the bottom. By adjusting the aim of the laser, you find that the reflected ray is fully polarized when the angle of incidence is 54°. What is the angle of refraction of the ray transmitted into the solid tank bottom in this case?

• A) 39°
• B) 47°
• C) can't answer this without knowing the indices of refraction.
• D) 36°

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