physics

single-slit diffraction pattern is formed when light of 680.0 nm is passed through a narrow slit. The pattern is viewed on a screen placed one meter from the slit. What is the width of the slit (mm) if the width of the central maximum is 2.69 cm?

  1. 0
  2. 0
  3. 20
asked by Andy
  1. Use the single-slit diffraction formula for the angular distance between the two minima on either side of the maximum. If you need a refresher course on that, see

    http://en.wikipedia.org/wiki/Diffraction

    That angle is given (for small angles) by
    theta = 2 (wavelength)/d

    Set that angle (in radians) equal to 2.69/100 = 0.0269

    Then solve for the slit width, d.

    1. 0
    2. 0
    posted by drwls

Respond to this Question

First Name

Your Response

Similar Questions

  1. physics help!!

    A diffraction pattern forms when light passes through a single slit. The wavelength of the light is 680 nm. Determine the angle that locates the first dark fringe when the width of the slit is each of the following. (b) 1.20 10-6

    asked by Anonymous on April 15, 2012
  2. Physics please help!

    A diffraction pattern forms when light passes through a single slit. The wavelength of the light is 680 nm. Determine the angle that locates the first dark fringe when the width of the slit is each of the following. (b) 1.20 x

    asked by linds on April 16, 2012
  3. physics

    A diffraction pattern forms when light passes through a single slit. The wavelength of the light is 680 nm. Determine the angle that locates the first dark fringe when the width of the slit is each of the following. (b) 1.20 10-6

    asked by linds on April 16, 2012
  4. Physics

    Light waves with two different wavelengths, 632 nm and 474 nm, pass simultaneously through a single slit whose width is 4.47 x 10-5 m and strike a screen 1.70 m from the slit. Two diffraction patterns are formed on the screen.

    asked by Beth on July 14, 2012
  5. Physics

    Light waves with two different wavelengths, 632 nm and 474 nm, pass simultaneously through a single slit whose width is 7.63 x 10-5 m and strike a screen 1.30 m from the slit. Two diffraction patterns are formed on the screen.

    asked by Jim on March 31, 2012
  6. Physics help please!

    Light waves with two different wavelengths, 632 nm and 474 nm, pass simultaneously through a single slit whose width is 7.63 x 10-5 m and strike a screen 1.30 m from the slit. Two diffraction patterns are formed on the screen.

    asked by Jim on March 30, 2012
  7. Physics ~ important due tomorrow!

    A student sets up a laser and screen and a single slit and observes the diffraction pattern. They then replace the single slit with a double slit (the separation of the double slit is exactly the width of the single slit). No

    asked by Sam on May 13, 2009
  8. Physics

    In a single-slit diffraction pattern, the distance between the first and second minima is 4.2cm on a screen 3.8m from the slit. Find the slit width given that the wavelength of the light is 530nm. Answer in mm Somebody please

    asked by Ben on April 9, 2017
  9. Physics

    Light shines through a single slit whose width is 1.12 mm. A diffraction pattern is formed on a screen located 4.0 m away. The distance between the middle central bright fringe and the second dark fringe is 4.0 mm. What is the

    asked by Jake on December 1, 2011
  10. physics

    Light shines through a single slit whose width is 1.12 mm. A diffraction pattern is formed on a screen located 4.0 m away. The distance between the middle central bright fringe and the second dark fringe is 4.0 mm. What is the

    asked by Josh on December 2, 2011

More Similar Questions