SSC
PHYSICS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
What are the uses of the electro-magnetic spectrum?
|
|
TV
|
|
|
sterilisation
|
|
|
heating food
|
|
|
Wifi
|
|
|
communications
|
Explanation:
Detailed explanation-1: -Electromagnetic waves have a vast range of practical everyday applications that includes such diverse uses as communication by cell phone and radio broadcasting, WiFi, cooking, vision, medical imaging, and treating cancer.
Detailed explanation-2: -Radio waves are used for wireless transmission of sound messages, or information, for communication, as well as for maritime and aircraft navigation.
Detailed explanation-3: -Generators, motors, and transformers. Electric buzzers and bells. Headphones and loudspeakers. Relays and valves. Data storage devices like VCRs, tape recorders, hard discs, etc. Induction cooker. Magnetic locks. MRI machines. More items
There is 1 question to complete.