Question

A black body of 2500k emits radiation calculate the wavelength

Answer 1

Hey.

Here is the answer.

Wien's displacement law states that the spectral radiance of black body radiation per unit wavelength, peaks at the wavelength λmax given by:

λmax = b / T


where T is the absolute temperature in kelvins. b is a constant of proportionalitycalled Wien's displacement constant.

b ≈ 2900 μm·K

So, as T = 2500 K

so, λmax = 2900 μm·K/ 2500 K
= 1.16 μm

Thanks.

Answer 2

All objects with a temperature above absolute zero (0 K, -273.15 oC) emit energy in the form of electromagnetic radiation. A blackbody is a theoretical or model body which absorbs all radiation falling on it, reflecting or transmitting none.