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Statement -1 : Good reflectors are poor emitters of thermal radiation.
Statement -2 : The ratio of the emissive power (e) and absorptive power (a) is constant for radiation of the same wavelength and temperature.

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Statement-1 is true, Statement-2 is true and Staement-2 is the correct explanation for Statement-1.

Statement-1 is true, Statement-2 is true but Statement-2 is not the correct explanation for Statement-1.

Statement-1 is true, Statement-2 is false

Sattement-1 is false, Statement-2 is true

answer is A.

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Detailed Solution

Good reflectors are poor absorbers. Thus from Kirchhoff's law, are also poor emitters of thermal radiation.

According to Kirchhoff’s law, $\frac{e_{λ}}{a_{λ}} =$ constant

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