When the temperature of a black body increases, it is observed that the wavelength corresponding to maximum energy changes from $$0.13$$ μm to $$0.26$$ μm. The ratio of the emissive powers of the body at the respective temperature is:

Question

When the temperature of a black body increases, it is observed that the wavelength corresponding to maximum energy changes from  $$0.13$$ μm to $$0.26$$ μm. The ratio of the emissive powers of the body at the respective temperature is:

Infinity Learn · Accepted Answer

λ$$1T1$$ $$=$$ λ$$2T2$$    λ$$1$$λ$$2$$ $$=$$ $$T2T1$$ $$=$$ $$0.260.13$$ $$=$$ $$2$$     $$T2$$ $$=$$ $$2T1By$$ Stefan's law, emissive power E $$=$$ σ$$T4$$      $$E1$$ $$=$$ σ$$T14$$;  $$E2$$ $$=$$ σ$$T24$$        $$E1E2$$ $$=$$ σ$$T14$$σ$$T24$$ $$=$$ $$T14(2T1)4$$ $$=$$ $$116$$

When the temperature of a black body increases, it is observed that the wavelength corresponding to maximum energy changes from 0.13 $μ m$ to 0.26 $μm$ . The ratio of the emissive powers of the body at the respective temperature is:

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When the temperature of a black body increases, it is observed that the wavelength corresponding to maximum energy changes from 0.13 μm to 0.26 μm. The ratio of the emissive powers of the body at the respective temperature is:

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When the temperature of a black body increases, it is observed that the wavelength corresponding to maximum energy changes from 0.13 $μ m$ to 0.26 $μm$ . The ratio of the emissive powers of the body at the respective temperature is: