A pencil flashlight submerged in water sends a light beam toward the surface at an angle of incidence of $30^{\circ}$. What is the angle of refraction in air?
Added by Lisa S.
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33), \( n_2 \) is the refractive index of air (1), \( \theta_1 \) is the angle of incidence (30°), and \( \theta_2 \) is the angle of refraction in air. Show more…
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