Question 9:
Diagram 9 shows an electromagnetic spectrum.
(a) Name the tool that is used to detect wave.
Answer:
(a) Oscilloscope
(b) Position of R between 30 kHz – 300 GHz
(c) Microwave
(d) Can move far
(e)
Agree
– Information exchange will be quicker
Or
Disagree
– Disturbs daily routines
Diagram 9 shows an electromagnetic spectrum.
Diagram 9
(a) Name the tool that is used to detect wave.
(b) Radioactive is one of the waves in the electromagnetic spectrum.
Label with letter R the position of radiowave spectrum in Diagram 9.
(c) State another one wave in the electromagnetic spectrum.
(d) State one advantage of using radiowave in telecommunication network.
(e) Do you agree that the use of telecommunication devises in daily life will enhance the well being of human?
Justify your answer.
Answer:
(a) Oscilloscope
(b) Position of R between 30 kHz – 300 GHz
(c) Microwave
(d) Can move far
(e)
Agree
– Information exchange will be quicker
Or
Disagree
– Disturbs daily routines