Electromagnetic Waves
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Science
9th Grade
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14 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What type of electromagnetic wave is primarily used for television and radio broadcasting?
Microwaves
Radio waves
Infrared
Ultraviolet
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which electromagnetic wave is used in satellite communications and cooking food?
X-rays
Gamma rays
Microwaves
Infrared
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following electromagnetic waves has the shortest wavelength?
Radio waves
Visible light
X-rays
Gamma rays
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which type of electromagnetic wave is used in fibre optic communications?
Ultraviolet
Visible light
Radio waves
Gamma rays
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which electromagnetic wave is used for sterilising medical equipment?
Infrared
X-rays
Gamma rays
Microwaves
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which electromagnetic wave is used in energy-efficient lamps?
Radio waves
Microwaves
Ultraviolet
Infrared
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary use of X-rays in practical applications?
Cooking food
Medical imaging and treatments
Satellite communications
Fibre optic communications
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