1. An interference pattern from a double slit aperture is projected on a screen that is very far away. The distance from the central maxima to the first maxima is 7 mm. a) How far is it from the central maxima to the second maxima? do₂ = mm b) How far is it from the central maxima to the third maxima? do3= mm c) Second maxima to the third maxima? d23 mm
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- 3. The glass plates in the figure are separated by a thin round filament. When the top plate is illuminated normally with a light of wavelength 595 nm, the filament lies directly below the fourteenth order bright fringe. What is the diameter of the filament?10. You have a single-slit diffraction apparatus, with a slit 4.60 × 10−6 m wide arranged 1.80 m from the screen. You would like an anti-node to appear 68.2 cm from the right bisector. What are two possible visible wavelengths you could use?11. A diffraction grating has 500 lines per cm. first order maximum for light with a wavelength of 600 nm? What is the angle for the
- 7. [-/1 Points] DETAILS OSCOLPHYS2016 27.4.WA.021. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Find the angle for the third-order maximum for 581 nm wavelength light falling on a diffraction grating having 1520 lines per centimeter.4. The figure below shows two single-slit diffraction patterns. The distance between the slit and the viewing screen is the same in both cases. Which of the following statements could be true? Circle A, B, C, or D. αι, λι a2, 22 A. The slits are the same for both and 2 > 2. B. The wavelengths are the same for both and a₁ >a₂. C. The wavelengths are the same for both and a,3. A particular diffraction grating has 1 300 grooves per millimeter, and 15.0 mm of illuminated area. a) Assuming an incident angle of 45.0°, calculate the diffraction angle for first-order light at 625 nm. b) What wavelength of light would give this same diffraction angle in the second order? )What is the first-order resolving power of the grating? d) What must be the separation (in nm) of two first-order spectral lines centered at 625 nm if they are to be resolved? e) What is the angular dispersion (in degrees) between the two lines in part (d) asthey emerge from the grating?Helium–neon laser light (? = 632.8 nm) is sent through a 0.250-mm-wide single slit. What is the width of the central maximum on a screen 2.00 m from the slit? mm3. In a double slit experiment, the distance between the slits is d=1 mm. A screen is situated at a distance of 2.5 m from the slits. Point P is at a distance of 25 cm from O', as in Figure. O' is the orthogonal projection of the center between the slits (0) on the screen. Monochromatic light with frequency v= 550 THz is used in this experiment. (a) Calculate the intensity of light at point P. (b) Calculate the angle ZP00'. (c) Calculate the location of the first three maxima with respect to point O'. (d) Calculate the location of the first three minima with respect to point O'. BONUS: You now consider that each slit has width a =0.05 mm. Calculate the intensity of light at point P. P.