Essay
Division of the EM Spectrum: The electromagnetic spectrum is divided into several parts that go by different names: radio waves, microwaves, infrared radiation, visible light, ultraviolet light, X-rays and Gamma-rays. However, we know that all are examples of the same phenomena, namely electromagnetic radiation. Why do you think these names were introduced in the first place? Research at your library or on reputable internet sites. Does retaining these names serve any useful purpose today?
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