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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 (e) and absorptivity (a) of the two bodies

(a) ex>ey & ax<ay
(b) ex<ey & ax>ay
(c) ex>ey & ax>ay
(d) ex<ey & ax<ay