For the production of electromagnetic waves, the charges used are:
Correct answer: C. Accelerating charges
- A. Stationary charges
- B. Charges moving with uniform speed
- C. Accelerating charges
- D. All of the above
Explanation
Electromagnetic waves are produced when charges undergo acceleration. Acceleration of charges creates changing electric and magnetic fields, which in turn generate electromagnetic waves. Therefore, accelerating charges are necessary for the production of electromagnetic waves.
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About Electromagnetic Waves
Electromagnetic waves consist of mutually perpendicular, oscillating electric and magnetic fields that also remain perpendicular to the direction of propagation. They travel through vacuum at the speed of light and include radio waves, microwaves, infrared, visible, ultraviolet, X-rays and gamma rays. Unlike mechanical waves, they do not require a material medium.
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