Monochromatic coherent light shines through a pair of slits. If ...

[lak]

Monochromatic coherent light shines through a pair of slits. If the distance between these slits is decreased, which of the following statements are true of the resulting interference pattern? (There could be more than one correct choice.)
 
  A) The distance between the maxima stays the same.
  B) The distance between the maxima decreases.
  C) The distance between the minima stays the same.
  D) The distance between the minima increases.
  E) The distance between the maxima increases.

Question 2

When light travels from air into water,
 
  A) its velocity, wavelength and frequency all change.
  B) its velocity changes, but its frequency and wavelength do not change.
  C) its frequency changes, but its velocity and wavelength do not change.
  D) its velocity and wavelength change, but its frequency does not change.
  E) its wavelength changes, but its velocity and frequency do not change.

[sabina576]

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[lak]

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[sabina576]

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