Which type of surface absorbs more heat and is therefore preferred during winters?
Dark-coloured surface
The amount of heat a surface absorbs depends on its colour and texture.
Dark-coloured surfaces are good absorbers of radiant heat, while light-coloured, white and shiny surfaces reflect most of the heat that falls on them.
Because dark surfaces absorb more heat, dark-coloured clothing is preferred in winter to keep the body warm.
Hence, the surface that absorbs more heat and is preferred during winters is a dark-coloured surface.
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?
Which process is responsible for the rising of warm air over a heated surface?
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
To change a temperature on the Kelvin scale to the Celsius scale, you have to ________ the given temperature.
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)?