41,970 views
8 votes
8 votes
Find the approximate temperature of a red star that emits light with a wavelength of maximum intensity of 736.07 nm.

User Ewitkows
by
2.7k points

1 Answer

25 votes
25 votes

We would apply Wien's displacement law which is expressed as

λmaxT = 0.002898mK

where

T is the temperature

From the information given,

λmax = 736.07 nm = 736.07 x 10^-9

T = 0.002898mK/736.07 x 10^-9

T = 3937

The approxinate temperature is 3937 K

User Peter Walser
by
3.0k points