An Innovative Physics Professor Conducts Laboratory Exercises in the College

question 13

Multiple Choice

An innovative physics professor conducts laboratory exercises in the college swimming pool. The professor places a submersible laser under water (n = 1.3) and aims the beam at a block of glass (n = 1.5) , which is also under water. At what angle of incidence will the reflected beam be totally polarized?

• A) 61°
• B) 49°
• C) 41°
• D) 39°

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