Suppose we spread white light out into a fan of wavelengths by means of a diffraction grating and then pass a small select region of that spectrum out through a slit. Because of the width of the slit, a band of wavelengths 1.2 nm wide centered on 500 nm emerges. Determine the frequency bandwidth and the coherence length of this light.
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Suppose we spread white light out into a fan of wavelengths by means of a diffraction grating and then pass a small select region of that spectrum out through a slit. Because of the width of the slit, a band of wavelengths 1.2 nm wide centered on 500 nm emerges. Determine the frequency bandwidth and the coherence length of this light.
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- Light of several wavelengths strikes a thin film of index 1.4. The thickness of the thin film is 320 nm and sits on awater, which has an index of refraction of 1.33. Which wavelength will produce the least reflected light: 440 nm or580 nm? Include a diagram. Clearly outline the steps of your thought process. This is a old study question that I am stuck on.The coherence length of an ordinary white light source can be increased if we place a color filter in front of the source, so that the light that passes through the filter is somewhat monochromatic. The minimum wavelength of the emerging light is 648 nm. What is the maximum wavelength in order for the coherence length to be 0.1170 mm?In a Young's double-slit experiment, light of wavelength 611 nm illuminates two slits which are separated by 1.00 mm. Bright fringes are seen on a screen at a distance of 5.00 m from the slits. Calculate the separation distance in units of mm, between adjacent bright fringes.
- When performing a Young's double slit experiment, what is the required separation distance between the two slits (in micrometers) to cause 534 nm light to have its first order maximum at an angle of 22.1 degrees? Your Answer:In a version of Young's double-slit experiment, two narrow slits in a screen are illuminated by plane monochromatic light with a wavelength of 560 nm. The slits are separated by a distance of 0.2 mm. An observation screen is placed at a distance of 3 m from the slits. The interference pattern on the observation screen consists of a series of bright bands separated by dark fringes. Calculate the separation between the second order and third order bright bands (second order and third order intensity maxima) on the observation screen.The distance between the ruled lines on a diffraction grating is 1770 nm. The grating is illuminated at normal incidence with a parallel beam of white light in the 400 nm to 700 nm wavelength band. What is the longest wavelength that appears in the third order spectrum?
- The table contains data obtained during the single-slit microwave experiment with a slit width of 7 cm and a wavelength of 2.8 cm. To compare data like this with theory in Sec. 8.5, you will have to normalize both the intensity and the angular data. A. What is the normalized intensity I/I0 at 40∘? B. What is the normalized angle β/π at 25∘?A set of narrow vertical slits is located a distance D from a screen. The slits are equally spaced and have the same width. The intensity pattern in the figure is observed when light from a laser passes through the slits, illuminating them uniformly. The screen is perpendicular to the direction of the light. Data: Distance to the screen=2.47 m, Wavelength of light = 420 nm, Distance between tick marks on the intensity figure = 1.20 cm. And w w w w w WLA What is the spacing between the slits? 8.821x10-5 m ↑ Computer's answer now shown above. You are correct. Your receipt no. is 158-9352 Calculate the width of the slits. 1.764x10-5 m Computer's answer now shown above. You are correct. Previous Tries Your receipt no. is 158-1657 > Previous Tries If the slit separation is increased by a factor of 4, what would be the distance between the principal peaks on the screen? 2.940x10¹ cm Computer's answer now shown above. You are correct. Previous Tries Your receipt no. is 158-2492When blue light of wavelength 470 nm falls on a single slit, the first dark bands on either side of center are separated by 51.0⁰. Determine the width of the slit. Express your answer to three significant figures and include the appropriate units. μA D= Value Units ?
- In a diffraction experiment the 1st order light (m=1) from a diffraction grating is falling onto a single slit (see picture below). The light from the slit is then observed on a second screen and the measured width of the central diffraction peak is found to be 8 mm. Calculate the number of lines per millimetres of the grating. The distance from the slit to the second screen is 2.16 m, the distance from the diffraction grating to the screen with the slit is 5 m, the slit width is 0.25 mm and the distance from the middle of the screen with the slit to the slit is 10 mm. 一个个个 light Grating Screen with slit Slit of size a distance from middle of Screen to the slit مع Width of Central ✓diffraction peakeThe wavelengths of the visible spectrum are approximately 400nm (violet) to 700nm (red). Find the angular width of the first-order visible spectrum produced by a transmission diffraction grating with 433 lines per millimeter when white light falls normally on the grating.Give your answer in degrees.Please explain each step....You shine monochromatic light with wavelength 720 nm through a slit that has a width of 0.750 mm and observe a diffraction pattern on a screen that is 3.60 m from the slit. The intensity at the center of the central maximum is Io = 7.80 W/m2. What is the intensity of the light at a point on the pattern that is halfway between the center of the central maximum and the first minimum of interference? The purple line in the figure shows the points that are halfway between the center of the central max. and the first min.