Out of the following options, which one can be used to produce a propagating electromagnetic wave?
Out of the following options, which one can be used to produce a propagating electromagnetic wave?
The correct option is D An accelerating charges
The explanation of the correct answer.
In case of option D
- Electromagnetic waves are only generated when an electric charge accelerates or decelerates.
- Electromagnetic waves are produced when the charge's electric and magnetic fields change due to acceleration or deceleration.
The explanation of the incorrect answers.
In case of option A
A charge travelling at constant velocity cannot produce electromagnetic waves because the electric and magnetic fields of the constantly moving charge do not change.
In case of option B
A stationary charge cannot produce electromagnetic waves as its electric field stays constant while it is at rest.
In case of option C
A chargeless particle cannot form an electromagnetic wave because it lacks electric or magnetic field, and electromagnetic waves necessitate changes in electric and magnetic fields.
Hence, option D is the correct answer.
An accelerating charges
The explanation of the correct answer.
In case of option D
- Electromagnetic waves are only generated when an electric charge accelerates or decelerates.
- Electromagnetic waves are produced when the charge's electric and magnetic fields change due to acceleration or deceleration.
The explanation of the incorrect answers.
In case of option A
A charge travelling at constant velocity cannot produce electromagnetic waves because the electric and magnetic fields of the constantly moving charge do not change.
In case of option B
A stationary charge cannot produce electromagnetic waves as its electric field stays constant while it is at rest.
In case of option C
A chargeless particle cannot form an electromagnetic wave because it lacks electric or magnetic field, and electromagnetic waves necessitate changes in electric and magnetic fields.
Hence, option D is the correct answer.
