The figures below represent interference fringes. The distances ...

[kodithompson]

The figures below represent interference fringes. The distances from the screen to the slits is the same for each figure, and the planes of the screen and the slits are parallel. In each figure the spacing d between the slits is the same. Which figure(s) represent(s) slits illuminated with light of the shortest wavelength ? The white spaces represent the interference maxima.
 
   

   
  a.
  I.
   
  b.
  II.
   
  c.
  III.
   
  d.
  IV.
   
  e.
  V.

Question 2

The figures below represent interference fringes. The distances from the screen to the slits is the same for each figure, and the planes of the screen and the slits are parallel. In each figure the spacing d between the slits is the same. Which figure(s) represent(s) slits illuminated with light of the greatest wavelength ? The white spaces represent the interference maxima.
 
   

   
  a.
  I.
   
  b.
  II.
   
  c.
  III.
   
  d.
  IV.
   
  e.
  V.

[ankilker]

Answer to Question 1

d

Answer to Question 2

e

[kodithompson]

Gracias!

[amcvicar]

Thanks for the timely response, appreciate it