Page 12 - Topic 3

• The region in the centre of the pattern will be a BRIGHT fringe. It will also be brighter than the other bright
fringes.
• The intensity of the fringes will decrease the further they are from the central bright fringe.

• The bright and dark fringes are also known as maxima and minima, respectively.

• The position of the m maximum on either side of the central maximum is given by the equation:
th
sin =

th
Where θ is the angle between the centre line and the line to the m maximum.

Here are some videos to aid in understanding the material.

https://www.youtube.com/watch?v=Pk6s2OlKzKQ

https://www.youtube.com/watch?v=1abpdO27KTo