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 all substances at any given temperture and for radiation of the same wavelength

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

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

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Statement-1 is true, Statement-2 is false.

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Statement-1 is false, Statement-2 is true.

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Solution

The correct option is D Statement-1 is true, Statement-2 is true and Statement-2 is the correct explanation for Statement- 1
From the krichoff's law we know that absorptivity is equal to emissivity,so the body which emitt more wil absorbe more nor reflect more. So good reflector are poor emittor.
Now, by taking there ratio it validate krichoff's law because at any fixed or constant temperature both are equal.

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Similar questions

- 1 :

0 < x < y \Rightarrow {log}_{a} x > {log}_{a} y

a > 1

- 2 :

a > 1, {log}_{a} x

I

\to L = I \to ω

II

\to τ = \frac{d \to L}{d t}

(p \lor q) \land \sim p

\sim p \land q

\sum_{r = 0}^{n} (r + 1)^{n} C_{r} = (n + 2) 2^{n - 1} .

\sum_{r = 0}^{n} (r + 1)^{n} C_{r} x^{r} = (1 + x)^{n} + n x (1 + x)^{n - 1} .

\sum_{r = 0}^{n} (r + 1)^{n} C_{r} = (n + 2) 2^{n - 1} .

\sum_{r = 0}^{n} (r + 1)^{n} C_{r} x^{r} = (1 + x)^{n} + n x (1 + x)^{n - 1} .

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