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10. A film of oil with thickness 200 nm floats on top of water, as shown in Figure 3. Light with a wavelength of 600 nm in the air shines directly on the surface. Some light is reflected from the surface of the air and the oil, while some passes into the oil and is reflected back up at the boundary between the oil and the water. How far does the second light ray travel in the oil before returning to the air, measured in units of the wavelength of the light in the oil? air (n = 1) oil (n = 1.5) %3D A) 0.5 wavelengths water (n = 1.3) B) 1 wavelength C) 0.67 wavelengths D) 0.33 wavelengths

10. A film of oil with thickness 200 nm floats on top of water, as shown in Figure 3. Light with a wavelength of 600 nm in the air shines directly on the surface. Some light is reflected from the surface of the air and the oil, while some passes into the oil and is reflected back up at the boundary between the oil and the water. How far does the second light ray travel in the oil before returning to the air, measured in units of the wavelength of the light in the oil? air (n = 1) oil (n = 1.5) %3D A) 0.5 wavelengths water (n = 1.3) B) 1 wavelength C) 0.67 wavelengths D) 0.33 wavelengths

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10. A film of oil with thickness 200 nm floats on top of water, as shown in Figure 3. Light with a wavelength of 600 nm in the air shines directly on the surface. Some light is reflected from the surface of the air and the oil, while some passes into the oil and is reflected back up at the boundary between the oil and the water. How far does the second light ray travel in the oil before returning to the air, measured in units of the wavelength of the light in the oil? air (n = 1) oil (n = 1.5) A) 0.5 wavelengths water (n = 1.3) %3D B) 1 wavelength C) 0.67 wavelengths D) 0.33 wavelengths
Transcribed Image Text:10. A film of oil with thickness 200 nm floats on top of water, as shown in Figure 3. Light with a wavelength of 600 nm in the air shines directly on the surface. Some light is reflected from the surface of the air and the oil, while some passes into the oil and is reflected back up at the boundary between the oil and the water. How far does the second light ray travel in the oil before returning to the air, measured in units of the wavelength of the light in the oil? air (n = 1) oil (n = 1.5) A) 0.5 wavelengths water (n = 1.3) %3D B) 1 wavelength C) 0.67 wavelengths D) 0.33 wavelengths
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