Q.

A black body has maximum wavelength λm at 2000 K. Its corresponding wavelength at 3000 K will be

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a

1681λm

b

8116λm

c

32λm

d

23λm

answer is D.

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Detailed Solution

X1T1=X2T2 λm×2000=λ23000 λ2=2λm3
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A black body has maximum wavelength λm at 2000 K. Its corresponding wavelength at 3000 K will be