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The graph, shown in the adjacent diagram...

The graph, shown in the adjacent diagram, represents the variation of temperature (T) of two bodies, x and y having same surface area, with time (t) due to the emission of radiation. Find the correct relation between the emissivity and absorptivity power of the two bodies

A

`e_(x) gt e_(y) "and" a_(x) lt a_(y)`

B

`e_(x) lt e_(y) "and" a_(x) gt a_(y)`

C

`e_(x) gt e_(y) "and" a_(x) gt a_(y)`

D

`e_(x) lt e_(y) "and" a_(x) lt a_(y)`

Text Solution

Verified by Experts

The correct Answer is:
D
For same temperature difference less time is taken for x, this means `e_(x) gt e_(y)`.
According to Kirchoff's law `a_(x) gt a_(y)`
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