Light traveling through medium 3 (n3 = 2.4) is incident on the interface with medium 2 (n2 = 2.0) at angle 0. If light does enter into medium 2 but no ligh enters into medium 1 (n, = 1.6), what can we conclude about the range of values for 0? n, n3 Select one: Oa. 0° < 0 < 30° O b. 42° < 0 < 56° O . 0° < 0 < 42° O d. 30° < 0 < 56° е. 0° < e < 56°

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Problem 4: Speed deamplifier. In the figure above on the right, block 1 of mass m1 slides along an x-axis on a frictionless floor at speed 4 m/sec.Then it undergoes a one-dimensional elastic collision with stationary block 2 of mass m2 = 2m1. Next, block 2 undergoes a one-dimensional elastic collision with stationary block 3 of mass mz = 4m1. What then is the speed of block 3? Answer: 16 m/sec or 1.78 m/sec.