I swear by what you see, and by what you do not see.
- The types of electromagnetic radiation are broadly classified into the following classes (regions, bands or types):
- Gamma radiation
- X-ray radiation
- Ultraviolet radiation
- Visible radiation
- Infrared radiation
- Terahertz radiation
- Microwave radiation
- Radio waves
- This classification goes in the increasing order of wavelength, which is characteristic of the type of radiation.
The Quran is considered to be a book of signs or “ayahs” by Muslims. The word “ayah” literally means “a sign” or “a miracle” in Arabic. The Quran is believed to contain many signs or miracles, which can be seen as both literal and metaphorical. These signs are believed to provide evidence of the Quran’s divine origin and to serve as guidance for those who read it. Muslims believe that the Quran contains a variety of signs and miracles, such as the creation of the universe, the formation of the human being, and the stories of the prophets.