Physics, 22.04.2020 00:51 etaylor3421
In your research lab, a very thin, flat piece of glass with refractive index 1.30 and uniform thickness covers the opening of a chamber that holds a gas sample. The refractive indexes of the gases on either side of the glass are very close to unity. To determine the thickness of the glass, you shine coherent light of wavelength λ0 in vacuum at normal incidence onto the surface of the glass. Whenλ0= 496 nm, constructive interference occurs for light that is reflected at the two surfaces of the glass. You find that the next shorter wavelength in vacuum for which there is constructive interference is 386 nm.
1) Use these measurements to calculate the thickness of the glass.
2) What is the longest wavelength in vacuum for which there is constructive interference for the reflected light?
Answers: 1
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In your research lab, a very thin, flat piece of glass with refractive index 1.30 and uniform thickn...
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