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प्रश्न
State the energy changes that occur in the following :
Lighting of a torch bulb.
उत्तर
Chemical energy into light and heat energy.
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संबंधित प्रश्न
State the energy changes that occur in a watch spring while it unwinds.
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State the energy changes in the following case while in use:
Burning coal
State the energy changes in the following case while in use:
A petrol engine of a running car
Explain conservation of energy.
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