What is the longest wavelength that can be observed in the third order for a transmission grating having 5900 slits/cm ? Assume normal incidence.
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What is the longest wavelength that can be observed in the third order for a transmission grating having 5900 slits/cm ? Assume normal incidence.
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- A double-slit system is used to measure the wavelength of light. The system has slit spacing d = 15 μm and slit-to-screen dis- tance L = 2.2m. If the m = 1 maximum in the interference pat- tern occurs 7.1 cm from screen center, what's the wavelength?Problem 2: Consider a 470 nm wavelength blue light falling on a pair of slits separated by 0.045 mm. At what angle (in degrees) is the first-order maximum for the blue light? 0 = || sin() cos() cotan() asin() atan() acotan() cosh() tanh() O Degrees O Radians tan() acos() sinh() cotanh() ED π () 7 E ^^ 4 5 6 8 9 HOME + 1 2 VO BACKSPACE 63 DEL END CLEARA diffraction grating has a grating constant of 415 lines/mm. If composite light with wavelengths of 601 nm and 461 nm are incident upon the grating, what is there angular separation in the 1st order spectrum? Answer this with a positive number of degrees.
- A single slit with a slit width of 0.48 mm is illuminated with monochromatic light having a wavelength of 491 nm. At what distance away should a screen be placed so that the central maxima has a spatial width of .52 cm. Express the distance in meters.A diffraction grating is 2.30 cm wide and contains 2100 lines. When used with light of a certain wavelength, a third order maximum is formed at an angle of 21.0 degrees. What is the wavelength (in nm)?A vehicle with headlights separated by 2.00 m approaches an observer holding an infrared detector sensitive to radiation of wavelength 885 nm. What aperture diameter is required in the detector if the two headlights are to be resolved at a distance of 10.0 km?
- DS-3 Coherent, monochromatic light goes through a pair of slits which are spaced a distance 0.600 mm apart, and the interference pattern is projected onto a screen. You notice that there are 11 bright fringes within the central diffraction maximum. What is the width of each slit (a)?Parameters of a Dielectric Waveguide. Light of free-space wavelength X, = 0.87 um is guided by a thin planar film of width d = 2 μm and refractive index n₁ = 1.6 surrounded by a medium of refractive index n₂ = 1.4. (a) Determine the critical angle 0, and its complement c, the numerical aperture NA, and the maximum acceptance angle for light originating in air (n = 1). (b) Determine the number of TE modes. (c) Determine the bounce angle and the group velocity v of the m= 0 TE mode.