using optical fibers....
Light weighted antennas are used for communication
no. LASER uses light frequencies.
Fluorescent materials are used in illumination, displaying, solid state lasers,light communication,light memory and so on.
yes. fiber optic communications literally move at the speed of light, while electric communication is limited to the wire used to transmit the data
Morse code.
....communication
it is used for the communication
Light waves are used for communication when ships use lamp signalling. This is used because it has a short range and the communications can not be detected by anyone else, so they are secure. Optical cables also use light waves to achieve very hgh data speeds. Above light frequencies the EM radiation becomes risky to use and is used only for specialised purposes like x-rays and cancer treatments.
The type of communication that is carried by sound and light waves are messages. They can be sent via a video message.
it is used for the communication
Utensils can be used for cooking as well as communication.
micro wave is used in cell phone communication.