In Fig. 33-58, light from ray A refracts from material 1 ( n 1 = 1.60) into a thin layer of material 2 ( n 2 = 1.80), crosses that layer, and is then incident at the critical angle on the interface between materials 2 and 3 ( n 2 = 130), (a) What is the value of incident angle θ A ? (b) If θ A is decreased, does part of the light refract into material 3? Figure 33-58 Problem 60. Light from ray B refracts from material l into the thin layer, crosses that layer, and is then incident at the critical angle on the interface between materials 2 and 3. (c) What is the value of incident angle θ B ? (d) If θ B is decreased, does part of the light refract into material 3?
In Fig. 33-58, light from ray A refracts from material 1 ( n 1 = 1.60) into a thin layer of material 2 ( n 2 = 1.80), crosses that layer, and is then incident at the critical angle on the interface between materials 2 and 3 ( n 2 = 130), (a) What is the value of incident angle θ A ? (b) If θ A is decreased, does part of the light refract into material 3? Figure 33-58 Problem 60. Light from ray B refracts from material l into the thin layer, crosses that layer, and is then incident at the critical angle on the interface between materials 2 and 3. (c) What is the value of incident angle θ B ? (d) If θ B is decreased, does part of the light refract into material 3?
In Fig. 33-58, light from ray A refracts from material 1 (n1 = 1.60) into a thin layer of material 2 (n2 = 1.80), crosses that layer, and is then incident at the critical angle on the interface between materials 2 and 3 (n2= 130), (a) What is the value of incident angle θA? (b) If θA is decreased, does part of the light refract into material 3?
Figure 33-58 Problem 60.
Light from ray B refracts from material l into the thin layer, crosses that layer, and is then incident at the critical angle on the interface between materials 2 and 3. (c) What is the value of incident angle θB? (d) If θB is decreased, does part of the light refract into material 3?
Consider a rubber rod that has been rubbed with fur to give the rod a net negative charge, and a glass rod that has been rubbed with silk to give it a net positive charge. After being charged by contact by the fur and silk...?
a. Both rods have less mass
b. the rubber rod has more mass and the glass rod has less mass
c. both rods have more mass
d. the masses of both rods are unchanged
e. the rubber rod has less mass and the glass rod has mroe mass
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