1a.
Two slits are 0.158 mm apart. A mixture of red light (wavelength=665 nm) and yellow-green light (wavelength = 565 nm) falls ontheslits. A flat observation screen is located 2.24 m away. Whatisthe distance on the screen between the third-order red fringeandthird-order yellow-green fringe?
1b.
a) What, if any, phase change occurs when light, traveling inair,reflects from the interface between the air and a soap film (n=1.33)?
b) What, if any, phase change occurs when light, traveling in asoapfilm, reflects from the interface between the soap film and aglassplate (n = 1.52)?
c) Is the wavelength of the light in a soap film greaterthan,smaller than, or equal to the wavelength in a vacuum?
d) A soap film (n = 1.33) is 465 nm thick and lies on a glassplate(n = 1.52). Sunlight, whose wavelengths (in vacuum) extendfrom 380to 750 nm, travels through the air and strikes thefilmperpendicularly. For which wavelength(s) in this rangedoesdestructive interference cause the film to look dark inreflectedlight?
1a.
Two slits are 0.158 mm apart. A mixture of red light (wavelength=665 nm) and yellow-green light (wavelength = 565 nm) falls ontheslits. A flat observation screen is located 2.24 m away. Whatisthe distance on the screen between the third-order red fringeandthird-order yellow-green fringe?
1b.
a) What, if any, phase change occurs when light, traveling inair,reflects from the interface between the air and a soap film (n=1.33)?
b) What, if any, phase change occurs when light, traveling in asoapfilm, reflects from the interface between the soap film and aglassplate (n = 1.52)?
c) Is the wavelength of the light in a soap film greaterthan,smaller than, or equal to the wavelength in a vacuum?
d) A soap film (n = 1.33) is 465 nm thick and lies on a glassplate(n = 1.52). Sunlight, whose wavelengths (in vacuum) extendfrom 380to 750 nm, travels through the air and strikes thefilmperpendicularly. For which wavelength(s) in this rangedoesdestructive interference cause the film to look dark inreflectedlight?
