A diffraction grating with a width of 5.0 mm contains 738 lines (rulings) per mm. When it is fully illuminated, what is the smallest wavelength interval this grating can resolve in the 3rd order, if the average wavelength is taken to be 435 nm? Answer: Check Choose...
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- a) Prove that a 26000 line/ cm diffraction grating cannot produce a maximum for visible light; b) Determine the longest wavelength for which this grating can produce the first-order maximum.Two slits are separated by 0.370 mm. A beam of 555-nm light strikes the slits, producing an interference pattern. Determine the number of maxima observed in the angular range -32.0° < 0 < 32.0°. maxima Need Help? Read ItVisible light is incident perpendicularly on a diffraction grating of 201 rulings/mm. What are the (a) longest, (b) second longest, and (c) third longest wavelengths that can be associated with an intensity maximum at 0 = 33.0°? (Show -1, if wavelengths are out of visible range.)
- A diffraction grating has 2000 lines/cm. What is the angle between the first-order maxima for red light (λ = 720 nm) and blue light (λ = 500 nm)?White light is incident on a diffraction grating with 2500 lines/cm. The screen is at a distance of 3.0 m. At what point nearest the central maximum will a maximum for red light (λ=600 nm) coincide with a maximum for violet light ( λ=400nm)? Identify the order of each maximum.The limit to the eye's acuity is actually related to diffraction by the pupil. What is the angle between two just‑resolvable points of light for a 6.25 mm diameter pupil, assuming the average wavelength of 539 nm? angle between two points of light: ° Take the result to be the practical limit for the eye. What is the greatest possible distance a car can be from a person if he or she can resolve its two headlights, given they are 1.20 m apart? greatest distance at which headlights can be distinguished: m What is the distance between two just‑resolvable points held at an arm's length (0.750 m) from a person's eye? distance between two points 0.750 m from a person's eye:
- A 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)?
- The limit to the eye's acuity is actually related to diffraction by the pupil. What is the angle between two just-resolvable points of light for a 2.75 mm diameter pupil, assuming the average wavelength of 539 nm? angle between two points of light: Take the result to be the practical limit for the eye. What is the greatest possible distance a car can be from a person if he or she can resolve its two headlights, given they are 1.40 m apart? greatest distance at which headlights can be distinguished: m What is the distance between two just-resolvable points held at an arm's length (0.900 m) from a person's eye? distance between two points 0.900 m from a person's eye: m(a) An air wedge is formed between two glass plates separated at one edge by a very fine wire of circular cross section as shown in the figure below. When the wedge is illuminated from above by 600 nm light and viewed from above, 30 dark fringes are observed. Calculate the diameter d of the wire (in um). μm (b) What If? How many dark fringes will be observed if the gap between the glass plates is filled with water? dark fringes Need Help? Read It Master It