Electromagnetic Waves Identification
Electromagnetic (EM) waves are a type of radiation made up of oscillating electric and magnetic fields. They travel at the speed of light and do not require a medium.
Analyzing Wave Types
- X-rays: These are a form of high-energy electromagnetic radiation, part of the EM spectrum.
- Beta rays: These consist of fast-moving electrons or positrons. They are particle radiation, not EM waves.
- Alpha rays: These are composed of alpha particles (helium nuclei). They are particle radiation, not EM waves.
- Audible waves: These are sound waves, which are mechanical waves requiring a medium like air or water to propagate.
Identifying EM Waves
From the options, only X-rays fit the definition of electromagnetic waves.
Similar Questions
The energy of light (photon) is a form of ______.
- Infra-red rays are
- Which of the following is NOT electromagnetic waves?
Important Questions from Electromagnetic Waves
The radio waves used for signaling and communication can be classified as which of the following?
- An electromagnetic wave propagates through a transparent, non-magnetic medium. If the relative permittivity of this medium is $\epsilon_r = 4$, and its relative permeability is $\mu_r = 1$, what is the speed of the electromagnetic wave in this medium? (Assume the speed of light in vacuum is $c = 3 \times 10^8$ m/s).
X-rays are produced when a target of suitable material element of high atomic mass is bombarded by a beam of fast moving and high energy particles such as:
Which of the following rays are used in doing LASIK (Laser - Assisted in Situ keratomileusis) eye surgery?
Arrange the following in the ascending order of their wavelength.
(i) Microwaves
(ii) Infrared rays
(iii) Visible rays
(iv) AM radio waves
(v) Gamma rays
(vi) X-rays
(vii) FM radio waves
