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Question
What is the SI unit of Stefan’s constant?
What is the SI unit of Stefan’s constant?
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Solution
The correct option is A
The energy of thermalradiation emmitted per unit time by a blackbody of surface area A is given by
E = σAT4
where σ is a universal constant known as Stefan's constant. Putting the SI units for energy, temperature and area we can arrive at option (a)
The energy of thermalradiation emmitted per unit time by a blackbody of surface area A is given by
E = σAT4
where σ is a universal constant known as Stefan's constant. Putting the SI units for energy, temperature and area we can arrive at option (a)
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