Danyal Education
Electromagnetic Spectrum Assignment 1 (Combined)
UNIT 13
Electromagnetic
Waves
For each of the questions, there are four possible
wavelength?
)
g\V 7. Which of the following
\V
transfer of heat from a high temperature
region to a low temperature region
remote control
2
3 killing cancerous cells
A land2only B land3only
C 2 and 3 only D 1,2 and3 (
Ed
(
uses infra-red
radiation?
I
A radio waves
B gamma rays
C ultraviolet rays
D X-rays
)
uc
has the longest
Waves
ati
on
gt\, 1. Which of the following has the shortest
wavelength?
Theme 4
,
1 microwave oven
2 transmitting communication signals
3 detecting flaws in metal
A land2only B land3only
C 2 and 3 only D l,2and3 (
record your choice.
U 2. Which of the following
.
g\V 6. Which of the following uses microwaves?
choices. Choose the one you consider correct and
A radio waves B visible light
C microwaves D X-rays (
.: .
)
)
0 3. Which of the following has the highest
U 8.
frequency?
A ultraviolet rays
B visible light
C microwaves
D X-rays
Which of the following uses visible light?
1
2
3
A land2only B land3only
C 2 and 3 only D 1,2 and3 (
ny
al
(
gM 4. Which of the following has
Seeing things with the naked eye
transfer of heat from a high temperature
region to a low temperature region
transmitting signals through optical fibres
)
the lowest
)
frequency?
U 9.
radio waves
visible light
infra-red radiation
X-rays
gM 5. Which of the following uses radio waves?
A
B
C
D
Which of the following uses ultraviolet rays?
I detecting fake notes
2 sun tanning
3 sterilising
A land2only B land3only
C 2 and 3 only D 1,2 and3 (
)
Da
A
B
C
D
)
detecting fake notes
transmittingcommunication signals
transfer ofheat
killing cancerous
cells
(
)
83
Unit
13
Eleckomagnetic Waves
gM 10. Which of the following uses X-rays?
Extension Questions
I detecting flaws in metals
2 detecting restricted objects in the luggage
3 detecting bone fracture in human body
A land2only B land3only
C 2 and 3 only D 1,2 and3 ( )
is true about
all electromagnetic waves?
A
B
C
They can be detected by a radio aerial.
They travel at 3 x 108 m s-1.
Only sound wave requires a medium to
travel.
They obey the law of reflection and
Ed
uc
ati
on
U 11. Which of the following uses gamma rays?
I sterilising
2 killing cancerous cells
3 detecting flaws in metals
A land2only B land3only
C 2and3only D l,2and3 (
U I 5. Which of the following statements
U 12. What is the speed of X-rays in a vacuum?
A 300 m s-r
B 3x108ms-1
C slightly greater than 3 x 108 m s
D slightly less than 3 x 108 m s-t (
D
refraction.
U 16. Which of the following statements
A
B
C
D
)
is true about
They can be blocked by solid objects.
They cannot be blocked by solid objects.
They carry charges.
The wave equation, =f L can be applied to
any of the electromagnetic waves.
I
2
U 17. Which of the following waves
A
B
C
D
3 All electromagnetic waves can be seen by
ya
l
U 14. Which
2 and 3
A red
C yellow
)
of the following is/are the properties of
electromagnetic waves?
(
)
B green
D violet
(
)
U 19. Which colour comes
immediately after green
in the ascending order of frequency?
Da
n
1
microwaves
radio waves
colour comes after blue in the descending
order of wavelengths?
B2 only
D1
infra-red radiation
ultra-violet rays
U I 8. Which
the naked eye.
A I only
C I and 2 only
come after white
light in the descending order of wavelengths?
All electromagnetic waves have a speed of
3xl08ms-r.
All electromagnetic waves are transverse
waves.
()
)
0 13. Which of the following is/are the properties of
electromagnetic waves?
)
all electromagnetic waves?
I
IV
(
All electromagnetic waves can be reflected
A red
C blue
and refracted.
2 All electromagnetic waves carry energy.
3 All electromagnetic waves carry charges.
A land2only B 2and3only
C land3only D 1,2and3 ( )
B green
D violet
(
U 20. Which of the following comes after green
)
in
the ascending order of wavelength?
I yellow 2 blue 3 red
A land2only B 2and3only
C 1 and 3 only D 1,2 and3 (
84
Unit
13
)
Electromagnetic Waves