Physics
Grade-7
Easy
Question
Vibrations of electrically charged particles produce ______ energy.
- Electrical
- Sound
- Light
- Thermal
Hint:
Light
The correct answer is: Light
Light energy is produced by the vibrations of electrically charged particles. When a charged particle vibrates, it causes the electric field surrounding it to vibrate as well. A vibrating electric field, in turn, creates a vibrating magnetic field. The two types of vibrating fields combine to create an electromagnetic wave. Light consists of electromagnetic waves.
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