A blackened metallic foil is kept at a distance 
from a spherical heater. The power absorbed by the foil is 
. If the temperature of heater and distance, both are doubled, then the power absorbed by the foil will be
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
Power absorbed by the foil 
Intensity at foil 
Area of foil
Now 
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