O 1.0 mm DI Question4 1 pts The light spectrum of a star shows the peak wavelength emitted by thel star to be at 400 nm. What is the surface temperature of the star? 9875 K O 4625 K 7250 K 8750 K

the surface temperature of star is 7250 K

Explanation:

Given data

wavelength = 400 nm

to find out

the surface temperature of star

solution

we will apply here wiens law formula that is given below

wavelength * temperature = 0.0029 m-k ... 1

put the value of wavelength in equation 1 so we get temperature here

wavelength * temperature = 2900000 nm-k

temperature = 2900000 / 400

temperature = 7250 K

so the surface temperature of star is 7250 K