Diagram 6.1 shows a few ways of radio wave propagation.
Rajah 6.1 menunjukkan beberapa kaedah perambatan gelombang radio.
(a) Name the two electromagnetic waves used in diagram 6.1.
Namakan dua gelombang
electromagnet yang digunakan dalam rajah 6.1.
Wave X / Gelombang X :.......................................................................
Wave Y / Gelombang Y:
…………………………………………………….
[2 marks]
/ [2 markah]
(b)
State two differences between wave X and wave Y.
Nyatakan dua perbezaan
gelombang X dan gelombang Y.
(i)………… ……………
(ii)..............................................................................................................
[2 marks] / [2 markah]
(c)
Diagram 6.2 shows the electromagnetic spectrum.
Rajah 6.2 menunjukkan spektrum elektromagnet.
|
Infrared rays
|
|
|
|
Gamma Rays
|
(i)
Write
the appropriate position of wave X and wave Y
in the electromagnetic spectrum in diagram 6.2.
Tuliskan kedudukan gelombang
X dan gelombang Y dalam spektrum elektromagnet dalam rajah 6.2.
[2 marks]
/ [2 markah]
(ii) Compare the velocity of wave X and wave
Y in vacuum.
Bandingkan halaju gelombang X dan
gelombang Y dalam vakum
-
.
…………………………………………………………………….
[1 mark] / [1 markah]
(iii) State one common characteristic of wave
X and wave Y.
Nyatakan
satu ciri serupa gelombang X dan gelombang Y.
…………………………………………………………………..
[1 mark]
/ [1 markah]
Answer
Wavelength X <
wavelength Y ……
|
Radiowave
|
Microwave
|
Infrared rays
|
|
|
|
Gamma Rays
|
-
Transfer energy
-
Transverse waves