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Q.

Is it true that black objects are better heat absorbers than white objects?


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a

True

b

False 

answer is A.

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Detailed Solution

The above statement is True.
A black-coloured object absorbs all wavelengths of light and converts them into heat, so the object gets warm easier than other coloured objects. At the same time, a white object reflects all wavelengths of light, so the light is not converted into heat, and the object's temperature does not increase noticeably.
In addition, black-coloured objects are not only good absorbers but good emitters too. Since they absorb most of the visible light, they appear black. For example, when we wear a black dress on a sunny day, we feel warmer than a white dress.
 
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