Quick Answer: What Wave Is Used For Long Distance Communication?

What are 7 C of communication?

According to the seven Cs, communication needs to be: clear, concise, concrete, correct, coherent, complete and courteous.

In this article, we look at each of the 7 Cs of Communication, and we’ll illustrate each element with both good and bad examples..

How does distance affect communication?

Likewise, the geographical distance also affects the message. Distance adds more requirements and barriers to communication as greater the distance, the more technical channels are needed. … Face to face communication has the least physical communication barrier and are easier as there as more communication channels.

What are the 7 types of waves?

Though the sciences generally classify EM waves into seven basic types, all are manifestations of the same phenomenon.Radio Waves: Instant Communication. … Microwaves: Data and Heat. … Infrared Waves: Invisible Heat. … Visible Light Rays. … Ultraviolet Waves: Energetic Light. … X-rays: Penetrating Radiation. … Gamma Rays: Nuclear Energy.

Who invented long distance communication?

Samuel MorseDeveloped in the 1830s and 1840s by Samuel Morse (1791-1872) and other inventors, the telegraph revolutionized long-distance communication. It worked by transmitting electrical signals over a wire laid between stations.

How does time affect communication?

Time is an integral part of a communication. When a group of people are having communication one must pay attention and communicate on time as it adds value to one’s opinion. If time is managed well during a communication it leads to a great communication with the desired results.

What happens to radio waves over distance?

As radio waves travel outward from their source – a transmitter – they lose intensity, and fast. The intensity of radio waves over distance obeys the inverse-square law, which states that intensity is inversly proportional to the square of the distance from a source.

What is used for long distance communication?

Telephone, telegraph, phototelegraph, and television signals are transmitted simultaneously over long distances over air, cable, and radio communications lines in which hundreds or thousands of independent communications channels are formed by multiplexing communications lines.

What types of waves are used for communication?

Radio waves are used for communication such as television and radio. Radio waves are transmitted easily through air. They do not cause damage if absorbed by the human body, and they can be reflected to change their direction. These properties make them ideal for communications.

How do we use waves?

Behaviour and uses of electromagnetic wavesRadio waves. Radio waves are used for communication such as television and radio. … Microwaves. Microwaves are used for cooking food and for satellite communications. … Infrared. … Visible light. … Ultraviolet radiation.

Can radio waves pass through human body?

Absolutely! Radio waves not only pass through the human body, but are also absorbed by them. In fact, strong enough radio waves can kill a person if they are strong enough! … So yes, radio waves can and do penetrate the human body.

Why are radio waves used for long distance communication?

This is because radio waves are very bad in penetrating matter, but they can reach long distances in open space, wave-guide and vacuum. Radio waves can travel to long distance with a speed near to the speed of light.

What are the dangers of waves?

Hazards of electromagnetic radiationmicrowaves cause internal heating of body tissues.infrared radiation is felt as heat and causes skin to burn.X-rays damage cells causing mutations (which may lead to cancer) and cell death – this is why doctors and dentists stand behind protective screens when taking lots of X-rays.More items…

How deep can radio waves penetrate?

Radio waves can penetrate nonconducting materials, such as wood, bricks, and concrete, fairly well. They cannot pass through electrical conductors, such as water or metals. Above ν = 40 MHz, radio waves from deep space can penetrate Earth’s atmosphere.

Which waves do we use to communicate with over long distances and why?

Electromagnetic radiation is used for communications and transmission of information. The waves that are used in this way are radio waves, microwaves, infrared radiation and light. The idea of using a signal lamp to communicate was used in the 19th century. This method of long distance communication needed a code.

What are the 7 barriers to communication?

Barriers to Effective CommunicationPhysical Barriers. Physical barriers in the workplace include: … Perceptual Barriers. It can be hard to work out how to improve your communication skills. … Emotional Barriers. … Cultural Barriers. … Language Barriers. … Gender Barriers. … Interpersonal Barriers. … Withdrawal.More items…