Which process is responsible for the rising of warm air over a heated surface?
Convection
Convection is the process responsible for the rising of warm air over a heated surface, as heated air becomes less dense and rises.
Radiation transfers heat without a medium, Conduction transfers heat through direct contact, and Insulation resists heat transfer — none describe rising warm air.
Hence, Convection is the correct answer.
Which type of surface absorbs more heat and is therefore preferred during winters?
Heat generated in an electrical resistor is measured in which SI unit?
Which heat transfer method enables the Sun to warm Earth, despite the vast empty space between them?
When a metal spoon is placed in a hot cup of tea, it soon becomes warm. Which mode of heat transfer is primarily responsible for this?
The brightness of a star depends on its
Thermocouple is a device which converts
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Ramu mixes 2 litres of water at 100°C and 18 litres of water at 32°C. What temperature will the water have after mixing?
Which one of the following is the correct relation between the Kelvin temperature (T) and the Celsius temperature (tc)?