ASNT Level III IR Practice Questions - ASNT NDT Level III Infrared Thermal Testing Method (IR) Exam

Wien's displacement law relates the peak wavelength of blackbody emission to absolute temperature as:

lambda_max * T = 2898 um K lambda_max = sigma T^4 lambda_max = h c / k T lambda_max * T = 5670 um K

Correct Answer:

lambda_max * T = 2898 um K

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