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Which example shows that electromagnetic waves can travel without moving through a specific material (medium)?

A.
light traveling through a glass window

B.
light traveling to the earth from an orbiting satellite

C.
rings made by a pebble when dropped in water

D.
sound traveling through air

Sagot :

AL2006idn
A).  No.  The medium is glass.

B).  Yes.  There is no material between the satellite and Earth,
only vacuum.

C).  No squared.  The rings are not electromagnetic waves, and
the material is water.

D).  No squared.  Sound is not an electromagnetic wave, and
the material is air.


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