Find the approximate temperature of a red star that emits light with a wavelength of maximum emission of 700 nm

equissupnica7 2022-07-17 Answered
Find the approximate temperature of a red star that emits light with a wavelength of maximum emission of 700 nm
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Answers (1)

Dominique Ferrell
Answered 2022-07-18 Author has 18 answers
Wien's displacement law states that
T = ( 2.9 × 10 3 ) λ m a x i m u m
where T is the temperature of the object, λ m a x i m u m is the wavelength of emitted radiation of maximum intensity.
Given
Wavelength of maximum intensity radiation of the red star is 700   n m = 700 × 10 9   m
Henceforth the temperature can be calculated as
T = ( 2.9 × 10 3 ) 700 × 10 9 T = ( 2.9 7 ) × 10 3 2 + 9 T = 4143   K
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