Fundamentals of Physics Study Set 2

Physics & Astronomy

Quiz 35 :

Interference

Quiz 35 :

Interference

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In a Young's double-slit experiment, light of wavelength 500 nm illuminates two slits which are separated by 1 mm.The separation between adjacent bright fringes on a screen 5 m from the slits is:
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B

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If the wavelength of a particular beam of light in vacuum is λ, and the index of refraction of a material is n, what is the wavelength of the light in the material?
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B

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Two point sources, vibrating in phase, produce an interference pattern in a ripple tank.If the frequency is increased by 20%, the number of nodal lines:
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A

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Huygens' construction can be used only:
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The light waves represented by the three rays shown in the diagram all have the same frequency.4.7 wavelengths fit into layer 1, 3.2 wavelengths fit into layer 2, and 5.3 wavelengths fit into layer 3.Rank the layers according to the speeds of the waves, least to greatest. img
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A "wave front" is a surface of constant:
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If the speed of light is c, and the index of refraction of a material is n, what is the speed of light in the material?
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Two light waves are initially in phase and have the same wavelength, 470 nm.They enter two different media of identical lengths of 2.50 µm.If n1 = 1.2 and n2 = 1.5, what is the effective phase difference of the waves when they exit the media? img
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Waves from two slits are in phase at the slits and travel to a distant screen to produce the second minimum of the interference pattern.The difference in the distance traveled by the wave is:
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Interference of light is evidence that:
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The reason there are two slits, rather than one, in a Young's experiment is:
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The phase difference between the two waves which give rise to a dark spot in a Young's double-slit experiment is (where m = integer):
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When light travels from one medium into a different medium with a different index of refraction,
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In a Young's double-slit experiment, the separation between slits is d and the screen is a distance D from the slits.D is much greater than d and is the wavelength of the light.The number of bright fringes per unit length on the screen is:
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In a Young's double-slit experiment, the slit separation is doubled.This results in:
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Units of "optical path length" are:
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In a Young's double-slit experiment the center of a bright fringe occurs wherever waves from the slits differ in the distance they travel by a multiple of:
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In a Young's double-slit experiment the center of a bright fringe occurs wherever waves from the slits differ in phase by a multiple of:
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Consider (I)the law of reflection and (II)the law of refraction.Huygens' principle can be used to derive:
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Waves from two slits are in phase at the slits and travel to a distant screen to produce the third bright fringe of the interference pattern.The difference in the distance traveled by the waves is:
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