How many satellites are moving around the earth?
a) 21 satellites
b) 22 satellites
c) 23 satellites
d) 24 satellites
What is the distance between satellites and earth?
a) 11000 miles
b) 12000 miles
c) 13000 miles
d) 14000 miles
What is speed of satellites moving around the earth?
a) 5000 miles an hour
b) 6000 miles an hour
c) 7000 miles an hour
d) 8000 miles an hour
Which of the following energy are used by satellites?
a) wind energy
b) solar energy
c) water energy
d) none of these
Transmission……is a condition that causes information to be lost.
a) Impairment
b) proper
c) un-impairment
d) none of these
What are the causes of impairments are?
a) attenuation
b) distortion
c) noise
d) all of these
