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Anton [14]
3 years ago
10

Which two characteristics make electromagnetic waves effective in communication?

Physics
1 answer:
Talja [164]3 years ago
3 0

Answer:

A.  They do not require a medium to carry information.

D.  They carry information very quickly.

Explanation:

The two characteristics that makes electromagnetic waves effective in communication is that they do not require a medium to carry information and they move information very quickly.

  • Electromagnetic waves are produced by the vibration between electrical and magnetic fields.
  • These waves are notable for being able to propagate without requiring any medium for their movement.
  • They also have very fast speed.
  • The speed of all electromagnetic waves is equal to that of light.
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Edit

In physics, power is the rate of doing work or of transferring heat, i.e. the amount of energy transferred or converted per unit time. Having no direction, it is a scalarquantity. In the International System of Units, the unit of power is the joule per second (J/s), known as the watt in honour of James Watt, the eighteenth-century developer of the condenser steam engine. Another common and traditional measure is horsepower (comparing to the power of a horse). Being the rate of work, the equation for power can be written:

Power

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Derivations from

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Answer:

पत्र- अपने क्षेत्र की सड़कों की बुरी दशा की जानकारी देते हुए और उन्हें ठीक कराने की प्रार्थना करते हुए नगर निगम अधिकारी को पत्र लिखिए |

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