Q6) What is the difference between electrostatic and electromagnetic waves? b) Using the fluid approach, first calculate the dispersion relation of ion acoustic waves and then find the group velocity?

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Q6) What is the difference between electrostatic and
electromagnetic waves?
b) Using the fluid approach, first calculate the
dispersion relation of ion acoustic waves and then find
the group velocity?
Transcribed Image Text:Q6) What is the difference between electrostatic and electromagnetic waves? b) Using the fluid approach, first calculate the dispersion relation of ion acoustic waves and then find the group velocity?
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