A tungsten lamp is at 3000 K and its surface area is 0.3 cm2. The
emissivity found experimentally for tungsten lamp is 0.4. The rate at
which heat is radiated from lamp is proportional to
3000^4
3273^4
2730^4
2727^4
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OPTION 1) RIGHT ANSWER BY STEFAN'S LAW!!❤✅
option 1 is the correct answer
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