The simplest
and most illustrative example of two-slit interference is
two-slit interference. For this case we consider The violet and green
wave crests originate from the lower and upper slits
respectively. In the directions shown by the blue lines,
the violet and green waves rise and fall together. This
is called One can solve for
the angular position of the maxima. Consider two rays
emited at an angle q from each of the slits. These nearly
parallel rays come together at a screen far away. If the
distance of
wavelengths, a bright maximum will occur on the screen.mThe above expression
gives the angles for the |