Answer:
[tex] 10.8\times 10^{-6}[/tex] m
Explanation:
T = temperature of ice = - 4 °C
In kelvin, temperature is given as
T = -4 + 273 = 269 K
λ = Wavelength of radiation emitted
b = Wien's constant = 2.898 x 10⁻³ m K
peak wavelength is given as
[tex]\lambda = \frac{b}{T}[/tex]
inserting the values
[tex]\lambda = \frac{0.002898}{269}[/tex]
[tex]\lambda = 10.8\times 10^{-6}[/tex] m
