Which of the following is not a part of the electro-magnetic spectrum?

Assessment: WAEC SSCE - Physics - 2009 (Objective) Subject: Physics

Question 1 Report

Which of the following is not a part of the electro-magnetic spectrum?
Answer Details
Alpha rays are not part of the electromagnetic spectrum. The electromagnetic spectrum includes all forms of electromagnetic radiation that differ in wavelength and frequency, including radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation, X-rays, and gamma rays. Alpha rays are actually alpha particles, which consist of two protons and two neutrons and are emitted by some types of radioactive materials. Alpha particles have a positive charge and are relatively large compared to other types of radiation, so they are not part of the electromagnetic spectrum.

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