Reference no: EM13953556
Q: If you put a few drops of liquid in a cup of soap with a little water and shake it around, making a great froth of bubbles. After several seconds, the bubbles will begin to show bright rainbow color patterns. Why must you wait before the colors appear?
Q: If you take a very close look at a worn surface under direct sunlight. A fingernail, an old coin, or the roof of an old car will all show a very fine granular pattern of tiny colored dots. This phenomenon is the so-called "speckled effect". What might be it's cause? Notice how it seems to move as you slowly move your head parallel to the surface.
Multiple choice:
1. Natural light is light that is:
(a) only found in nature
(b) linearly polarized
(c) completely unpolarized
(d) polarized but rapidly changing
(e) none of these. Explain your choice.
2. Unlike transverse waves, longitudinal waves cannot:
(a) interfere,
(b) diffract
(c) be reflected
(d) be polarized
(e) none of the above. Explain your choice.
Problem:
1. A film of oil (nf = 1.42) 0.000 02 mm thick is spread ona glass plate and viewd from above at nearly 90 deg to the surface. What color will the film appear to be? Compute the vacuum wavelength.
2. A glass camera lens with an index of 1.55 is to be coated with cryolite film (n = 1.30) to decrease the reflection of normally incident green light (lander 0 = 500 nm). What minimum thickness should be deposited on the lens?
3. A narrow vertical single slit (in air) is illuminated by IR from a He-Ne laser at 1152.2 nm, and it is found that the center of the first dard band lies at an angle of 4.2 deg off the central axis. Determine the width of the slit.
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What is the image distance
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The number of doctors in a hospital
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What is the history of ethics in research
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What minimum thickness should be deposited on the lens
: A narrow vertical single slit (in air) is illuminated by IR from a He-Ne laser at 1152.2 nm, and it is found that the center of the first dard band lies at an angle of 4.2 deg off the central axis. Determine the width of the slit.
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What is the probability that a person total charges are $100
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What fraction of the incident unpolarized light emerges
: A narrow beam of natural light shines onto a flat sheet of polystyrene (np = 1.59) 1.00 cm thick, and it is found that the reflected beam is linearly polarized. At what angle will the transmitted beam leave the sheet on its bottom side?
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How far above central axis first zeros of irradiance
: Two vertical narrow slits seperated by 0.20 mm are illuminated perpendicularly by 500-nm. A fringe pattern appears on a screen 2.00 m away. How far (in mm) above and below the central axis are the first zeros of irradiance?
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How a corporate entity should communicate with the public
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