Black objects absorb more heat and also radiate more heat than white or polished ones.Give a few applications related to both the concepts.
Answers
Black objects heat up faster than shiny objects ,although they cool down fast too.
Black is a good absorber because it absorbs all kind of EMF we have.
When any heat falls down on white or shiny objects it bounces back,but when it falls on black objects,its all retained .
Examples of applications can be;
1.Solar panels
the solar panels are painted black so that they can absorb heat at a faster rate.
Moreover,they're painted with a shiny top coating so as to reduce the rate at which heat is lost to the atmosphere.
2. Cloth selection
During summer,people wear white or shiny clothes as they're likely to absorb less heat,while during winter people wear dark clothes so as to absorb any available heat that is available.
Applications related to black objects and white or shiny objects:
The black bodies or objects are good conductors of heat which observe more amount of heat easily than the white coloured bodies.
Solar cookers: (Black body)
- The solar cookers are painted in black colour as they can absorb more amount of heat in a small period of time.
- So, only the solar panels are also painted in black.
Wearing white dresses in summer: (White body)
- Mostly people are like to wear white dress in the summer season, because during the summer season the sun radiation is quite high.
- So, by wearing shiny or white clothes, which attract less amount of heat that helps the people from absorbing of more heat.
To know more:
Black objects absorb more heat than white one give 2example
https://brainly.in/question/1692770