Energy cannot be created or destroyed. It can only be transferred from one form to another. Energy that is "wasted," does not disappear. Instead, it is transferred to its surroundings and spreads out so much that it becomes difficult to do anything useful with it. Incandescent light bulbs are very inefficient in energy transfer. Energy-saving lightbulbs, such as fluorescent bulbs transfer a greater proportion of electrical energy as light energy. In fluorescent bulbs what kind of energy is "wasted" in the energy transfer from electricity to light?
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The answer should be electric energy as far as I can understand.
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In fluorescent bulbs, electric energy and some heat energy is "wasted" in the energy transfer from electricity to light.
- In fluorescent bulbs, the electrons collide with atoms of the medium and excites them.
- When these excited electrons come back from higher energy level to lower energy level, then light is emitted.
- So, only a very small amount of heat energy is wasted in it.
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