Physics, 13.12.2020 14:00 MicarriHarris6122
An electromagnetic wave traveling in a vacuum has electric field component with
maximum amplitude 100 V/m.
a) What is the intensity of this wave?
A wave with the same Emax is now formed in a vacuum cavity with two parallel,
perfectly conducting walls separated by a distance L. One standing-wave pattern in
the cavity (the nth frequency) produces nodal planes (nodes) of the electric field with a
spacing of 2 cm. The next-higher frequency standing wave in the cavity produces
nodal planes with a spacing of 1.5 cm.
b) What is the value of n?
c) What is the distance L between the walls of the cavity?
d) What is the intensity of the standing wave pattern?
Answers: 1
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An electromagnetic wave traveling in a vacuum has electric field component with
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