when a candle is lit ,then chemical energy turns into heat light energy, then what does light energy turn into? ( keeping in mind the fact that energy can neither be created nor be destroyed)

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Solution

When candle is burnt the chemical energy stored in wax is converted into heat energy and light. Light is formed due to the ionization of gases at higher temperature. So it also increase the surrounding temperature. Here we can consider as total energy of system is conserved. It is changing from chemical energy to heat energy only.

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