1 A) interference B) transparency C) diffusion D) diffraction 2 A) reach different points at different times B) reach the same point at the same time C) interfere destructively D) reach every other point at the same time 3 Of the following, which is the best explanation for why the area at the top of the loop in the figure below is black?
<![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0078807220/617927/nb.JPG','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (8.0K)</a>]]> A) There is no constructive interference taking place in that area. B) The constructive interference that is happening is for wavelengths out of the visible spectrum. C) There is no light passing through that area. D) There is no soap film in that area. 4 A) two troughs overlap B) crests and troughs align C) two crests overlap D) a crest and a trough overlap 5 A) 2×wavelength B) 1/2 wavelength C) 4×wavelength D) 1/4 wavelength 6 A) to filter out other colors of light B) to make the light waves coherent C) A single source of light is needed. D) Light needs to escape the system. 7 A) a wave B) neither a particle nor a wave C) a particle only D) a particle 8 A) destructive diffraction B) destructive interference C) constructive diffraction D) constructive interference 9 -5 m apart, light casts the first bright band 3.0×10-2 m from the center of a screen 0.65 m away. What is the wavelength of this light?A) 510 nm B) 390 nm C) 430 nm D) 460 nm 10 A) very large B) about the same C) very small D) not important in the experiment 11 A) 18.6 mm B) 21.3 mm C) 20.1 mm D) 19.1 mm 12 How, if at all, would the figure below be different if orange light of the same intensity had been used with the same apparatus?
<![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0078807220/617927/nc.JPG','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (3.0K)</a>]]> A) The pattern would be brighter. B) The central band would be wider. C) The whole figure would be orange. D) It wouldn't be any different. 13 A) dark bands overlap precisely B) dark band of the first star covers the dark band of the second one C) central bright band falls on the dark band of the second star D) central bright bands overlap 14 A) They reflect less light back into space. B) They have reduced resolving power to make objects clearer. C) They focus the same amount of light as a smaller lens, but they are sharper. D) They have greater resolving power. 15 A) 578 nm B) 505 nm C) 524 nm D) 420 nm 16 In the figure below, if light of wavelength 475 nm were shone through a slit of width 0.20 mm at a screen 0.60 m away, what would be the width of the central band?
<![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0078807220/617927/nd.JPG','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (11.0K)</a>]]> A) 28 mm B) 1.2 mm C) 7.1 mm D) 1.8 mm 17 d is__________.A) the distance between dark bands B) the distance between the crests of the wave C) the distance between two lines D) the distance from the grating to the screen 18 A) the same distance between the central bright band and the first dark band B) a greater distance between the central bright band and the first dark band C) no distance between the central bright band and the first dark band D) a smaller distace between the central bright band and the first dark band 19 3 lines/cm. If light of a wavelength 432 nm is viewed through the spectrometer, what is the angle at which the light has a first order band?A) 51.3° B) 65.8° C) 39.7° D) 24.2° 20 How, if at all, would the figure below be different if violet light of the same intensity had been used with the same apparatus?
<![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0078807220/617927/nc.JPG','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (3.0K)</a>]]> A) The pattern would be dimmer. B) It wouldn't be any different. C) The central band would be narrower. D) The whole figure would be violet. 21 A) Interference occurs on the object on which the shadow is falling. B) Light diffracts around the edges of the object. C) The edges of the original objects are fuzzy. D) Light naturally spreads out. 22 A) similar; the same manner B) identical; different manners C) opposite; the same manner D) opposite; different manners 23 A) a spectrum of white light B) only one spectrum C) a series of spectra D) no spectrum 24 A) refraction B) diffraction C) interference D) reflection 25 A) different from B) clearer than C) twice as wide as D) the same as 26 A) 570 nm B) 520 nm C) 470 nm D) 610 nm 27 A) reflection B) refraction C) diffusion D) diffraction 28 A) Differing thickness of the lens. B) Tiny scratches that act like slits. C) Ripples on the surface. D) A thin film of oil. 29 A) diffraction spectroscope B) grating spectrometer C) grating spectroscope D) gravity spectroscope 30 In Figure 19-10, if light of wavelength 475 nm were shone through a slit of width 0.20 mm at a screen 0.50 m away, what would be the width of the central band?
<![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0078807220/617927/nd.JPG','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (11.0K)</a>]]> A) 11 mm B) 5.9 mm C) 2.4 mm D) 24 mm 31 A) 0.13 m B) 0.008 m C) 0.010 m D) 0.013 m 32 A) 9.1×10-7 cm B) 9.1×10-5 cm C) 8.7×10-5 cm D) 9.6×10-7 cm 33 A) blue B) diffused C) red D) white
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