The rate at which a body radiates heat depends on-
its temperature
its colour
its nature (dull or shiny)
all of these
A
its colour
B
all of these
C
its temperature
D
its nature (dull or shiny)
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Solution
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The rate at which body radiates depends upon its nature (shiny or dull).
Nature represents emmisivity of body (radiation emittence) and absorptivity of medium (radiation absorptance of medium compared to black body).
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