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A black body radiates 20 W at temperature 227⁰C. It temperature of the black body

A black body radiates 20 W at temperature 227⁰C. It temperature of the black body is changed to 727⁰C, then its radiating power will be

Options

(a) Lamp black
(b) Platinum black
(c) Highly heated charcoal lamp
(d) Cavity maintained at constant temperature

Correct Answer:

Cavity maintained at constant temperature

Explanation:

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