PleaseHelpMe1930 PleaseHelpMe1930
  • 09-01-2024
  • Physics
contestada

A black body, at a temperature of 227oC, radiates heat at a rate of 20cal m−2s−1. When its temperature is raised to 727oC, the heat radiated by it in cal m−2s−1 will be closest to:

A 40
B 160
C 320
D 640

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