A red laser beam goes from crown glass with refraction index n=1.3 to air (n=1) with an incident angle of 0.23 radians. What is the angle of

Question

A red laser beam goes from crown glass with refraction index n=1.3 to air (n=1) with an incident angle of 0.23 radians. What is the angle of refraction in degrees?

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RI SƠ 6 months 2021-08-09T20:30:38+00:00 1 Answers 1 views 0

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    2021-08-09T20:31:47+00:00

    Answer:

       θ = 10.28º

    Explanation:

    To find the angle of refraction use the equation of refraction

            n₁ sin θ₁ = n₂ sin θ₂

    where index 1 is for incident light and index 2 is for refracted light.

             sin θ₂ = n₁ / n₂ sin θ

    let’s calculate

             sin = 1 / 1.3 sin 0.23

             sin = 0.175

            θ= 0.17528 rad

    let’s reduce to degrees

           θ = 0.17528 rad (180ª / pi rad)

           θ = 10.28º

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