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Question
In a dark room, three objects a,b,c are placed. They appear respectively white, orange, red and dull red. Then their temperatures are in sequence
In a dark room, three objects a,b,c are placed. They appear respectively white, orange, red and dull red. Then their temperatures are in sequence
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Solution
The correct option is B Ta>Tb>Tc
According to Wein's displacement law:
λT=b
As we can see, the wavelength is inversely proportional to the temperature of the source.
In other words, higher the wavelength, lower is the temperature.
The order wavelength is :
λa<λb<λc
The order of temperature would be the exact reverse order:
Ta>Tb>Tc
Hence option B is correct.
According to Wein's displacement law:
λT=b
As we can see, the wavelength is inversely proportional to the temperature of the source.
In other words, higher the wavelength, lower is the temperature.
The order wavelength is :
λa<λb<λc
The order of temperature would be the exact reverse order:
Ta>Tb>Tc
Hence option B is correct.
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