Category: CBSE

Central Board of secondary education

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Sandeep Jha

Melting is the process where a solid changes into a liquid due to an increase in temperature or pressure. This occurs when the substance absorbs enough heat to break the bonds holding its molecules in a fixed structure. Common examples ...

Sandeep Jha

The walls of a thermos flask are galvanized with a reflective coating to minimize heat transfer by radiation. This shiny coating reflects infrared radiation, reducing heat loss and maintaining the temperature of the contents.