JacintoKovalsky JacintoKovalsky

26-05-2015
Computers and Technology

Answered

which of the following electromagnetic waves are not used for communication? a.gamma rays b.microwaves c.infrared waves d.radio waves

Verified Answer :

26-05-2015

Gamma rays are not used for communication.

-- We have no safe way to generate them.
-- We have no cheap way to detect them.
-- We have no way to impress information on them (modulate them).
-- They're dangerous.

Otherwise they're ideal for communication.

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