April 9, 2014
Ch. 12 Dispersion
Introduction
In chapter 9 and 10 we discussed non dispersive waves. The speed of non dispersive wave is
independent of w and k (c = w/k = constant.). Non dispersion is an ideal case. For example
the transverse wave travelin

March 30, 2014
Ch. 11 Fourier Theory
Introduction
If a periodic function is well behaved then it can be written as discrete sum of Fourier series of
trigonometric or exponential functions with specific frequencies, whereas a general function
that is well

March 27, 2014
Ch. 10 Non-dispersive waves in physics
Introduction
In chapter 9 we mostly discussed transverse waves traveling on string. In this chapter we will
discussed longitudinal waves. Longitudinal waves travel in the same direction in which the
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