Question

Which technology uses low frequency (LF) radio waves? space communication FM radio broadcasting TV program broadcasting submarine communication

Answer 1

submarine communication

Answer 2

• Submarine communication uses low frequency radio waves as these low frequcy waves are able to penetrate to a good distance in the water and thus help in communication.
• High frequency waves cannot be used as they bounce off the surface of water as they would do from a solid object and cannot be used for communication.