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 bodiesa)Ex andgt; Ey andamp; ax andlt; ayb)Ex andlt; E, andamp; ax andgt; a,c)Ex andgt; E, andamp; ax andgt; ayd)Ex andlt; E, andamp; a, andlt; a,Correct answer is option 'C'. Can you explain this answer?

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a)
E_x > E_y & a_x < a_y
b)
E_x < E, & a_x > a,
c)
E_x > E, & a_x > a_y
d)
E_x < E, & a, < a,

Correct answer is option 'C'. Can you explain this answer?

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The graph, shown in the adjacent diagram, represents the variation of ...

The graph sh ows that for the same temperature difference (T₂ – T₁), less time is taken for x. This means the emissivity is more for x. According to Kirchoff's law, a good emitter is a good absorber as well.

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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 and absorptivity power of the two bodiesa)Ex > Ey & ax < ayb)Ex < E, & ax > a,c)Ex > E, & ax > ayd)Ex < E, & a, < a,Correct answer is option 'C'. Can you explain this answer?

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