(c) If you want the beam to undergo total internal reflection at the second interface (the interface between sheet 1 and the air), what is t

Question

(c) If you want the beam to undergo total internal reflection at the second interface (the interface between sheet 1 and the air), what is the minimum angle the incoming beam (the beam traveling in the sheet 2) must make with the x-axis

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Xavia 5 years 2021-08-17T15:49:16+00:00 1 Answers 15 views 0

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  1. Jezebel
    0
    2021-08-17T15:50:28+00:00
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    Answer:

    33.749

    Explanation:

    According to the given situation, the solution of the minimum angle is shown below:-

    We will apply the law to no and n1 medium  which is

    1.8\times sin(\theta_2)=1\times sin90

    \theta_2 = sin^{-1} \frac{1}{1.8}

    After solving the above equation we will get

    = 33.749

    Therefore for computing the minimum angle we simply applied the above formula.

    Hence, the correct answer is 33.749

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