What is Wien’s Displacement Law

Wien’s displacement law describes the relationship between the temperature of a black body and the peak wavelength of its emission spectrum. This fundamental physics principle states that the wavelength of the peak of the emission spectrum of a black body is inversely proportional to its absolute temperature. The law is crucial in astrophysics for determining star temperatures and understanding thermal radiation.

How to Use Wien’s Displacement Law Calculator

Step 1: Select the calculation mode – choose whether you want to calculate temperature from peak wavelength or peak wavelength from temperature.

Step 2: For temperature calculation, input the peak wavelength in nanometers (nm). For wavelength calculation, enter the temperature in Kelvin (K).

Step 3: Click the calculate button to obtain your result. The calculator will display both the numerical result and the calculation method used.

Step 4: Review the explanation provided below the result to understand how the calculation was performed using Wien’s displacement law formula: λ₍max₎ = b/T, where b is Wien’s constant (2.898×10⁻³ m·K).

Step 5: For astronomical applications, use the temperature results to classify stars based on their surface temperature, or use wavelength results to understand the color of thermal radiation from various objects.