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Question
Yellow light is viewed by reflection from a thin vertical soap film. Let 
be the wavelength of the light within the film. Why is there a large dark space at the top of the film?
A) no light is transmitted through this part of the film
B) the film thickness there is /4
C) the light reflected from exactly one of the two surfaces undergoes a 180ï‚°phase change
D) the film is too thick in this region for thin film formulas to apply
E) the reflected light is in the infrared
Answer
This answer is hidden. It contains 1 characters.
Related questions
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Q:
In a photoelectric effect experiment at a frequency above cut off, the stopping potential is proportional to:
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Q:
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Q:
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Q:
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Q:
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Q:
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Q:
The resolving power of a telescope can be increased by:
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Q:
Light of wavelength 480 nm falls on a slit of width 3.5 m. What is the relative intensity (that is, the value of I/Im) of the diffraction pattern at an angle of 18?
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Q:
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