JacintoKovalsky JacintoKovalsky

26-05-2015
Computers and Technology

contestada

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

Respuesta :

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.

Answer Link

Otras preguntas

n(p)=4 means that there a four elements in a set P. Given: n(X u Y)=50 n(X)=20 and n(Y)=40. Determine n(X n Y)

Explain how cells all come from preexisting cells.

in the first half of the nineteenth century, cherokee efforts to retain their tribal lands in georgia received direct support from

Which type of isolation is being described: Yellow butterflies breed during the summer season while red butterflies breed during the winter season, because of t

plz help i will give brainlyest example of this Negroes placed under the direction or supervision of any other person than a Catholic, are liable to confiscati

Write=1\frac{5}{7}[as an improper fraction.

explain two disorders of the skeletal and muscular system

Name the six languages used by UN?

the are the greatest source of infectious disease transmission.

please help I don't understand