A beam of light enters side 1 of a triangular piece of plastic (a prism) of index of refraction ...

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A beam of light enters side 1 of a triangular piece of plastic (a prism) of index of refraction \( 1.5 \) as shown in the following figure. The three sides of the prism are of equal length. Which of the following statements is correct?
(A) The beam will emerge from side 1
(B) The beam will emerge from side 2
(C) The beam will emerge from side 3
(D) The beam will not emerge
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