in the SCANTRON mark.the Jetter .coresponding to the comest answer CHAPTER 23 EL
ID: 1730969 • Letter: I
Question
in the SCANTRON mark.the Jetter .coresponding to the comest answer CHAPTER 23 ELECTROMAGNETIC WAVES 1 33. If unpolarized light is incident from the left on three polarizers as shown in Fig, below, in which cases will NOT some light get through? A. Cases 1 and 2. B. Case 2 and 3. ?Case 1 and 3. D. Cases 1 only E. Case 3 only 400 2 34. Parallel light rays cross interfaces from medium I into medium 2 and then into medium 3 as shown in Fig, below. What can we say about the relative sizes of the indices of refraction of these media? A. n2> n3 n3. B. nl n3> n2. C. n2>nl n3. D n3 >n2 nl. E. nl n2 n3. 35. A beam of light is emitted in a pool of water from a depth of 82.0 em. Where must it strike the air water interface, relative to the spot directly above it, in order that the light does not exit the water? (nwater 2.33 at 2 0.59 nm) A. 74.6 cm B. 82.3 cnm C. 93.5 cm D. None of above.Explanation / Answer
33.
B) case 2 and case 3
because the angle between two consecutive polarizers is 90 there.
34
n2 < n1 and n3 > n2
B)
n1 > n3> n2
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