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Question: Answered & Verified by Expert
According to Stefan's law of radiation, a black body radiates energy σT⁴ from its unit surface area every second, where T is the surface temperature of the black body. A nuclear weapon may be thought of as a ball of radius 0.5 m. When detonated, it reaches a temperature of 10⁶ K and can be treated as a black body.If surrounding has water at 30 C° , how much water can 10% of the energy produced evaporate in 1 s? [Lw=4186.0 J/kg K andLv=22.6× 105J/kg ]
ChemistryThermal Properties of MatterNEET
Options:
  • A 7×108kg
  • B 7×109kg
  • C 8×108kg
  • D 8×109kg
Solution:
2482 Upvotes Verified Answer
The correct answer is: 7×109kg
Correct Option is : (B)
7×109kg

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