Question

if the maximum intensity of radiation for a black body is found at 1.45 μm what is the temperature of radiating body by wiens constant ​

Answer 1

Answer :-

As per wiens equation:-

λ(max) = b / T

where b is Wien's displacement constant, b = 2.9 x 10⁻³ meter-Kelvin

b = 1.45 μm = 1.45 x 10⁻⁶

T = black body temperature

T = b /  λ(max)

T = 2.9 x 10⁻³ /1.45 x 10⁻⁶

T = 2 x 10³ K