Question

the blackbody curve for a star named Theta is shown below. What is the surface temperature of this star rounded to the nearest whole number

Answer 1

The image of the black body curve is missing, so i have attached it.

Answer:

T ≈ 3372 K

Explanation:

From the attached curve of the black star, if we trace the peak value of the wavelength from the graph, we will see that it is approximately 859.5 nm.

Thus; λ_peak = 859.5 × 10^(-9) m

From wiens law, we know that;

T•λ_peak = 2.898 × 10^(-3) m.K

Where T is surface temperature.

Plugging in the relevant values, we can find the temperature T

Thus;

T = (2.898 × 10^(-3))/(859.5 × 10^(-9))

T ≈ 3372 K