The energy radiated from a black-body at a temperature of 727°C is E. – InterviewSolution

InterviewSolution

1.	The energy radiated from a black-body at a temperature of 727°C is E. By what factor the radiated energy shall increase if the temperature is raised to 2227°C ?
Answer» E₂/E₁ = [ T₂/T₁]⁴ = [(2227 + 273) / (727 + 273)]⁴ = [2500/1000]⁴ = 39

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