Question

What is the value of Wien’s constant?

(a) 2.9*10^-3mK

(b) 2.9*10^-4mK

(c) 2.9*10^-3cmK

(d) 2.9*10^-4cmK

This question was addressed to me in a job interview.

Asked question is from Thermal Properties of Matter topic in chapter Thermal Properties of Matter of Physics – Class 11

Answer 1

Right answer is (a) 2.9*10^-3mK

The best explanation: Wein’s displacement law states that the product of temperature and wavelength contributing the most to energy is a constant equal to 2.9*10^-3mK.