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Questions  

black body has wavelength λm corresponding to maximum energy at 2000 K. Its wavelength corresponding to maximum energy at 3000 K will be:

a
32λm
b
23λm
c
1681λm
d
8116λm

detailed solution

Correct option is B

λmT=constant ⇒λm(2000)=λ'm(3000) ⇒     λm'=23λm

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