1. If a thin film has a thickness that is (a) ¼ of a wavelength, constructive interference...

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1. If a thin film has a thickness that is
(a) ¼ of a wavelength, constructive interference will always occur.
(b) ¼ of a wavelength, destructive interference will always occur.
(c) ¼ of a wavelength, constructive interference will always occur.
(d) ¼ of a wavelength, destructive interference will always occur.
(e) None of the above is always true.
2. If unpolarized light is incident from the left on three polarizers as shown in Fig. 24-57, in which case will some light get through?
(a) Case 1 only.
(b) Case 2 only.
(c) Case 3 only.
(d) Cases 1 and 3.
(e) All three cases.
2)
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