THIS INFRARED SPACE TELESCOPE HAS BLUE, GREEN AND RED CORRESPONDING TO 4.6.6 AND 12 WAVELENGTHS RESPECTIVELY

Infrared rays are adjacent to the red light side of the visible spectrum with a wavelength longer than those of red light. Infrared rays with a wavelength closer to the microwave range of the electromagnetic Spectrum are radiated from hot objects.

Visible spectrum

Visible light forms from a very small part of the electromagnetic Spectrum, and has wavelengths of approximately 390nm to approximately 750nm.
The human eye is capable of seeing the seven rainbow colours that white light consists of, hence the term visible spectrum. Visible light enables us to see colours and objects. It forms the basis of life on earth because it is used by green plants to produce food substances and provide oxygen through photosynthesis.

Ultraviolet rays

Ultraviolet rays border on the violet part of the visible spectrum with a wavelength shorter than those of violet light. Ultraviolet light comes from the sun and fluorescent lights and is invisible to the eye.

X-rays

X-rays have a high frequency and thus radiation with a high energy. X-Rays can therefore penetrate human skin and flesh but not bones and teeth. They are widely used to take photos or images on a photographic film these are also known as X-ray photos, for medical diagnosis. They’re also used by doctors for Cat scans.

Gamma rays

Gamma rays have the highest frequency and are therefore the highest energy in the electromagnetic spectrum. They are released through Radioactive elements. Gamma rays can be very harmful and dangerous but can also be used in a good way. They are used to destroy cancer cells during radiotherapy and are used for killing bacteria and sterilizing food or medical instruments.

Dangers of Radiation

The greater the penetrating ability of the electromagnetic rays, the more damage they can do to the molecules in our cells. excessive exposure to UV rays can cause ageing and skin damage, as well as cancer.
Fun fact:
The skin becomes Brown or Darker when exposed to moderate levels of UV rays ( the brown pigment melanin is released). It helps to prevent damage to the deeper layers of the tissue. Suntan lotions contain compounds that help us to protect the skin from these sort of rays.

Radiation from Cellphones

IN ELECTROMAGNETIC RADIATION, THE TERM "RADIATION" APPLIES ONLY TO THE PARTS OF AN ELECTROMAGNETIC FIELD, THAT RADIATE INTO INFINITE SPACE AND DECREASE INTENSITY SO THAT THE ENERGY THAT CROSSES THROUGH A SURFACE IS THE SAME

Cell phones use microwaves with relatively low frequencies and therefore have a reasonably low penetrating ability. Nevertheless, there are major concerns that the excessive use of cellphones World-Wide may pose a health risk. The danger exists that a part of the energy may penetrate your head because cell phones are held against your ear.
Continuous research is being done about the relationship between the use of cellphones and the incidence of cancer. So far It cannot be proven with certainty, that cell phone usage causes cancer. However, it is strongly recommended that the use of cellphones is limited, especially indoors or to the use of hands-free systems

THE END

References

1.https://en.wikipedia.org/wiki/Electromagnetic_radiation

2.https://en.wikipedia.org/wiki/Infrared

3.https://en.wikipedia.org/wiki/Visible_spectrum

4.https://en.wikipedia.org/wiki/Ultraviolet

5.https://en.wikipedia.org/wiki/X-ray

6.https://en.wikipedia.org/wiki/Gamma_ray

7.https://en.wikipedia.org/wiki/Electromagnetic_radiation_and_health

8.https://en.wikipedia.org/wiki/Radiation