Plasma is used in_________________?
Correct answer: D. All of these
- A. Fluorescent bulb
- B. Neon signs
- C. Lasers
- D. All of these
Explanation
Plasma is an ionised gas containing free electrons and positive ions, and it conducts electricity and emits light. These properties are used in fluorescent bulbs, neon signs and some laser systems, so all the listed applications are valid. A student may choose neon signs alone by forgetting that fluorescent lamps and certain lasers also use electrically excited ionised gases.
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About Kinetic Molecular Theory
Kinetic molecular theory explains gases as rapidly moving particles separated by large distances, with negligible volume and negligible intermolecular attraction in the ideal model. It relates temperature to average kinetic energy and explains gas pressure, Boyle's and Charles's laws, diffusion, effusion and the conditions under which real gases deviate from ideal behavior.
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