Published by:
CGP EDU Academic Team
Published on: August 23, 2026
A wire of length 10 cm and diameter 0.5 mm is used in a bulb. The temperature
of the wire is 
and power radiated by the wire is 94.2 W . Its emissivity is 
where 
(Given 
and assume that the emissivity of wire material is same at all wavelength. )
Text Solution
Verified by ExpertsThe correct answer is:
5
(5)
Power, 
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