What will prohibit an electromagnetic wave?

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What will prohibit an electromagnetic wave?

2007-04-16 12:19:04 · 2 answers · asked by jolly jo 1 in Science & Mathematics ➔ Other - Science

2 answers

Any opaque object will block an optical electromagnetic wave. A perfect conductor like a superconductor will block all electric fields. An unchanging magnetic field can penetrate a superconductor, but only if it's there when the material transitions to superconductivity. With no electric field, there's no way for an electromagnetic wave to propagate in a superconductor.

2007-04-17 08:03:26 · answer #1 · answered by Frank N 7 · 0⤊ 0⤋

a 2m thick slab of lead

2007-04-16 20:56:17 · answer #2 · answered by poolmasta2012 1 · 0⤊ 0⤋