Black-body spectrum ?

sensie | 17:50 Sat 18th Apr 2009 | Science

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The approximate mean photon energy of a black-body spectrum which is emitted by an object at a temperature of 10^5 K is ? eV . (answer to one significant figure)

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The wavelength at which this spectrum reaches a peak corressponds to a ? wavelength than that of a black-body spectrum emitted by the cosmic microwave background. should it be a (shorter or longer) wavelength

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vascop

what's the point in my doing your homework for you? You don't learn anything. Do some work and research for yourself you lazy person.

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Black-body spectrum ?

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