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AIIMS 2014 Physics Question Paper for free online practice with solutions

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Question : 10 of 60
 
Marks: +1, -0
A body at temperature of 728°C and has surface area 5 cm2, radiates 300 J of energy each minute. The emissivity is
(Given Boltzmann constant = 5.67×10−8Wm2K4)
Validate
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