Saved Bookmarks
| 1. |
In a single-slit diffraction experiment, light of wavelength lambda illuminates the slit of width 'a' and the diffraction pattern is observed on a screen. (a) Show the intensity distribution in the pattern with the angular position theta. (b) How are the intensity and angular width of central maxima affected when (i) width of slit is increased, and (ii) separation between slit and screen is decreased ? |
|
Answer» SOLUTION :(a) The graph is shown here. (b) (i) If the width .a. of the slit is increased then ANGULAR width of central maxima is decreased and INTENSITY of maxima increases. (II) If the separation between slit and screen (D) is increased, the angular width of central maxima REMAINS unaffected but intensity of light decreases. 
|
|