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We have looked at interference due to sources separated in space. What
about the time component of a wave? Sources separated in frequency? Interference of 30 0 Hz 31Hz (Beats)
30 Hz and 31 Hz
3 Hz and At fixed position,
Beat is difference average Dispersion
In materials, the angular frequency is a function of the wavenumber, The phase velocity, the velocity at
which the waves propagate,
The group velocity, the velocity at which the modulation
or wave packet propagates,
Speed at which information propagates
: 1 A...
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