Pre-class Exercise #12

A simple diffraction grating with 5 slits can be modeled by 5 coherent ripple/wave sources as shown above (the position is given in centimeters).  What happens if the number of slits is increased to 10? Start 

Note: wait for the frame counter in the upper left-hand corner of the simulation.

Interactive Hint

Build up the grating model from an array of 1, 2, 3, 4, and 5 sources. 

 

  Your Name:

  Your Answer:

  A. The angle between the diffraction orders would increase.

  B. The angle between the diffraction orders would decrease.

  C. The angle between the diffraction orders would remain the same but the maxima would become sharper.

  D. The angle between the diffraction orders would remain the same but the maxima would become broader.

This Physlet was created by Mario Belloni and Wolfgang Christian.