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- Which of the following are not electromagnetic waves?Option: 1 cosmic raysOption: 2 gamma r
Which of the following are not electromagnetic waves?
cosmic rays
gamma rays
β − rays
X - rays
Answers (1)
Electromagnetic waves are also known as EM waves that are formed when an electric field comes in contact with the magnetic field. These fields are perpendicular to each other. EM waves travel at a speed of 3 × 108 ms-1 in a vacuum. Gamma rays, microwaves, radio waves are examples of EM waves.
β−raysβ-rays are fast moving beam of electrons
Cosmic rays, γ-rays, and X-rays are part of electromagnetic spectrum, while β-rays are emitted by radioactive elements. Hence β-rays is not electromagnetic waves
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