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1. Made By : Mubarek-Kurt
Mubareks Physics Assignment
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2.  Electromagnetic Spectrum is : the range of
wavelengths or frequencies over which
electromagnetic radiation extends.
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3.  Radio Wave is used for television signals. (Used for
communications.
 Radio waves have lowest frequency and longest waves.
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4.  Some claims suggest cell phone RFs may instigate
brain tumors and even cancer.
 To much Radio waves may cause Cancer .
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5.  The most common use of infra-red waves is in remote
controls for electronic devices and also to send data
between such devices. Infra-red, or IR, is also used in
thermal imaging, heating, night vision, missile
tracking and weather forecasting.
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6.  Infrared radiation (IR) is electromagnetic radiation
with a wavelength between 0.7 and 300 micrometers,
which equates to a frequency range between
approximately 1 and 430 THz. The main danger of too
much infrared to human beings is overheating. The
radiations also cause dehydration, a depletion of
electrolytes, mobilizing toxins around the body and
complicating pre-existing illnesses.
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7.  Visible light is used during the study of the Earth and
the Universe through the use of different instruments
that detect different wavelengths. These light
wavelengths are normally not visible to the naked eye.

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8.  Laser safety is safe design, use and implementation of
lasers to minimize the risk of laseraccidents, especially
those involving eye injuries. Since even relatively small
amounts of laser lightcan lead to permanent eye
injuries
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9.  One of the uses : detecting forged bank notes by
fluorescence.
 And it is used to protect eyes and skin ! .
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10.  ultraviolet radiation can cause normal cells to become
cancerous.
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11.  An X-ray is a common imaging test that has been used
for decades to help doctors view the inside of the body
without having to make an incision.
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12.  There are some harmful effects of an X ray. If a woman
is pregnant and has an x ray it can cause tumors to the
unborn child. Also, it increases the risk of cancer by 40
percent.
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13.  Gamma rays can provide benefits. Gamma rays are electromagnetic
radiation. Gamma rays have short wave lengths and high frequency. We
use gamma rays in x-rays, radio waves, and light. Gamma rays can be an
effective cancer fighting tool. Doctors treat tumors with gamma rays
which essentially kills the cell. Scientist use gamma ray telescopes to
explore the galaxy. Being able to research outer space through the use
of gamma ray satellites helps us to better understand the world we live
in.
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14.  Gamma rays cause cell damage and can cause a
variety of cancers.
 They cause mutations in growing tissues, so unborn
babies are especially vulnerable.

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