Two stars A and B radiate maximum energy at the wavelength of 360 nm and 480 nm, respectively. Then, the ratio of the surface temperatures of A and B is
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a
3 : 4
b
81 : 256
c
4: 3
d
256: 81
answer is C.
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Detailed Solution
According to Wien's displacement law, λT= constant ∴ T1T2=λ2λ1=480360=43