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Choose the correct statement:  Wavelength of microwaves ranges between

Choose the correct statement:  Wavelength of microwaves ranges between Correct Answer infrared waves and radio waves.

Concept:

  • Wave: The disturbance that transfers energy from one place to another is called a wave.

There are mainly two types of waves:

  • Electromagnetic waves (EM waves): The wave which is generated due to vibration between electric field and magnetic field and it does not need any medium to travel is called an electromagnetic wave. It can travel through a vacuum.
    • For example Light, radio waves, X-rays, microwaves, ultraviolet rays, etc.
    • Electromagnetic waves are transverse in nature because they propagate by varying their electric and magnetic fields so that both the fields propagate perpendicular to each other.
  • Mechanical waves: The oscillation of matter which is responsible for the transfer of energy through a medium is called a mechanical wave. It can’t travel through a vacuum.
    • For example Sound waves, wave in a string, water waves, etc.
  • Radio waves: The lowest frequency portion of EM waves that have wavelengths range between 1 mm to 100 km or frequencies between 300 GHz to 3 kHz are called radio waves.
  • Microwave: It is an electromagnetic wave with frequency ranges between 300MHz (0.3 GHz) and 300 GHz in the electromagnetic spectrum.
    • It is specially used in spacecraft communication, TV and long-distance telephone lines.
    • In artificial satellites, mostly microwaves are used for communication.

Explanation:

Radiation

Range of wavelengths

Typical wavelength

↓

Increasing wavelength

 

Decreasing

Energy

 

Decreasing

frequency

Gamma

10-16 m – 10-10 m

10-15 m

X-Rays

10-13 m – 10-8 m

10-10 m

UV

10-8 m – 400 nm

10-8 m

Visible Light

400 nm – 700 nm

 

Infra-red

700 nm – 10-3 m

10-5 m

Microwaves

10-3 m – 10-1 m

10-2 m

Radio waves

10-1 m – 106 m

102 m


So, Wavelength of microwaves ranges between infrared waves and radio waves.

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