5. light traveling through medium 3 (n3 = 3.00) is incident on the interface with medium 2 (n2 = 2.00) at angle θ. if no light enters into medium 1 (n1 = 1.00), what can we conclude about θ? a) θ> 19.5° b) θ< 19.5° c) θ> 35.3。 d) θ < 35.3。 e) θ