(a) What resolution is required for a diffraction grating to resolve wavelengths of 512.23 and 512.26 nm?...
Question:
(b) With a resolution of 104, how close in nm is the closest line to 512.23 nm that can barely be resolved?
(c) Calculate the fourth-order resolution of a grating that is 8.00 cm long and is ruled at 185 lines/mm.
(d) Find the angular dispersion ) between light rays with wavelengths of 512.23 and 512.26 nm for first-order diffraction (n = 1) and thirtieth-order diffraction from a grating with 250 lines/mm and ɸ = 3.0°.
Step by Step Answer:
a b c Resolution nN 4800 cm 1850cm 1 59 10 4 d ...View the full answer
Related Video
Using a few basic physics principles, you can impress your friends with a trick that makes a bottle disappear. For this experiment, you will need a mini plastic bottle, glycerin, a glass, and a funnel. First, open the bottle and pour some glycerin into it, then close the bottle tightly. Next, pour some water into the glass using a funnel. Place the mini bottle into the glass of water and it will look normal. This is because light travels through air faster than it travels through the glass and water, allowing our eyes to see the bottle inside the glass. However, when you fill the mini bottle with more glycerin, and pour glycerin into the glass, then put the glycerin filled bottle into the glass with glycerin in it. Half of the bottle that is submerged in the glycerin will become invisible as the light travels through glass and glycerin at the same speed, thus it does not bend and no refraction takes place, making the bottle invisible. This happens because both glass and glycerin have almost the same refractive index, which causes the speed of light to be the same in both mediums, causing no bending of light and making the bottle disappear.
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