The light beam in the figure below strikes surface 2 at the critical angle. Determine the angle of incidence 0₁. (Let 0₂ = 42.4º.) 27.5 X Your response is within 10% of the correct value. This may be due to roundoff error, or you could have a mistake in your calculation. Carry out all intermediate results to at least four-digit accuracy to minimize roundoff error. 0₁ Surface 1 60.0⁰ Surface 2

A beam of white light goes from air into water at an incident angle of 55.0°. At what angles are the green (550 nm) and violet (410 nm) parts of the light refracted? (Enter your answer to at least one decimal place.) green ?°violet ?°

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As we saw in the video in step 1, total internal reflection can occur for cases where a light ray attempts to travel from a high index to low index medium. However, it can only occur for particular ranges of incident angles. The lowest possible incident angle for which total internal reflection occurs is called the critical angle. With = 1.50 and n₂ = 1.00, use the simulation to find the critical angle (in degrees). 1₂ 7₂. 1' Play around with different values of ₁, ₂, and 8₁. Try to find the critical angle for different values of n₁ and Note that total internal reflection is only possible in cases where n₁ > ₂.