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What is the fundamental difference between electromagnetic waves and other waves?
they dont send out magnetic signals
Can light waves carry sound?
By modulating the light you can send signals, they would need to be electronically translated to be heard as sound.
What type of waves are used to carry signals?
All range of waves. Mostly short waves , or ultra short waves. They provide higher quality signal, but on less distance.
Why the sky waves are not used in the transmission of T.V. signal?
when the frequency range is more than 40mhz then the ionosphere is totaly unable to reflect the signal back to the earth.as we know that the frequency range of TV signals is 100mhz-200mhz.so the transmission of TV signals via sky waves is not possible.
How do waves carry signals?
Waves can be varied (modulated) by either changing amplitude (amplitude modulation AM) or changing frequency (wavelength) (frequency modulation FM). The modulations are used to carry the information signal.
What is the fundamental difference between electromagnetic waves and other waves?
they dont send out magnetic signals
Which types of electromagnetic waves can be used to send signals along optical fibers?
Only light is used to send signals along optical fibres. That's why this type of fibre is described as "optical". Fibres designed to conduct electrical signals are referred to as "wires".
Waves used for broadcastig radio signals are called what?
The waves used to broadcast radio signals are called RF waves and these generally lie in VHF and UHF band of electromagnetic spectrum.
What are light waves used for?
Their most important use is allowing us to see. Light waves react with chemicals in our eyes, which send signals to the brain, which creates the sensation of sight.
Can light waves carry sound?
By modulating the light you can send signals, they would need to be electronically translated to be heard as sound.
Who developed a telegraph that used electromagnetisims to send and receive signals?
I did!!
Nerve cells send out signals?
Yes they do send out signals
What are characteristics of broadband?
each channel can only transmit signals in one direction signals are transmitted as rf waves can be used to transmit multiple signals at once
What is the difference between broadband and a broadcast?
Broadband involves sending multiple signals on multiple frequencies. Broadcast involves using radio waves also known as electromagnetic radiation to send signals.
What type of waves are used to carry signals?
All range of waves. Mostly short waves , or ultra short waves. They provide higher quality signal, but on less distance.
Which part of the body does the deer use to send signals to others in the herd?
A deer uses his tail to send signals to the others in his herd. It is often used as a warning for danger.
How would you describe broadband?
each channel can only transmit signals in one direction signals are transmitted as rf waves can be used to transmit multiple signals at once
