One Way To Determine The Index Of Refraction Of A Gas Is To Use An Interferometer As Shown Below One Of The Beams Of A 1 (66.11 KiB) Viewed 43 times
One Way To Determine The Index Of Refraction Of A Gas Is To Use An Interferometer As Shown Below One Of The Beams Of A 2 (32.67 KiB) Viewed 43 times
One way to determine the index of refraction of a gas is to use an interferometer. As shown below, one of the beams of an interferometer passes through a glass container that has a length of L-2 cm. Initially the glass container is a vacuum. When gas is slowly allowed into the container, a total of 6199 dark fringes move past the reference line. The laser has a wavelength of 680 nm (this is the wavelength when the light from the laser is moving through a vacuum). Laser Mirror Beam Splitter Diffraction Pattern Glass Container Mirror A.) Determine how many wavelengths will fit into the glass container when it is a vacuum. Since the light passes through the container twice, you need to determine how many wavelengths will fit into a glass container that has a length of 2L. number of wavelengths (vacuum) = B.) The number of dark fringes is the difference between the number of wavelengths that fit in the container (length of 2L) when it has gas and the number of wavelengths that fit in the container (length of 2L) when it is a vacuum. Use this knowledge to determine how many wavelengths fit into the container (length of 2L) when it is finished being filled with gas. number of wavelengths (gas) = C.) Determine the index of refraction of the gas at its final density. How can you combine your answers for (A) & (B) to take advantage of the formula derived in. the Content section? n=
As shown below, white light is incident on a prism. For the orange light that emerges, 0₁ = 65°. For the purple light that emerges, 8₂22°. The prism is surrounded by a vacuum & p = 41°. Determine the prism's index of refraction for each color and the wave speed of each color in the prism. white light normal 0₂₁ purple= orange Vpurple= Vorange=
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