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Question

The rate at which a body radiates heat depends on-
  1. its temperature
  2. its colour
  3. its nature (dull or shiny)
  4. all of these

A
its colour
B
all of these
C
its temperature
D
its nature (dull or shiny)
Solution
Verified by Toppr

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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