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Igcse Physics Revision NotesO Level Physics Revision Notes

Electro Magnetic Spectrum

The Electro Magnetic Spectrum contain different types of waves, some of which are visible to human eye.

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Properties Of The Electro Magnetic Waves:

  • They all are transverse waves.
  • They transfer energy from one place to another.
  • They can travel through vacuum, no need of medium.
  • They all travel at 3 × 108 ms-1 in a vacuum.
  • They all travel with the same speed in air.
  • They all obey the laws of reflection and refraction.

Electro Magnetic Spectrum

Long wavelength                                                                                                   Short wavelength

Low Frequency                                                                                                      High Frequency

Capture41                                                                                             Capture42

Sources And Applications Of Electro Magnetic Waves:

Capture43B

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12 Comments

    1. Thank You for commenting, please suggest what other information do you need in this topic, we will try to add them.

    1. Hi Aiman, we have noted down your suggestion and will definitely work upon adding more revision notes for physics and biology.

    1. Your notes are very helpful wow! it would be awesome if you could add notes on magnetism, current electricity and DC circuits.

  1. it’s very helpful. Thanks.
    i wanna know that are there also radioactivity notes?
    (i feel high level of difficulty in radioactivity)

  2. its indeed very helpful.but i hope that there was the electronics lesson. that is the hardest lesson of all. if we could a very DETAILED note on electronis it is very much appreciated.this site helos me alot.

    thank you

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