If ( \lambda\_m ) denotes the wavelength at which the radiat... | Physics | SolveeIt | Solveeit

Today, August 23

Question

If $\lambda_m$ denotes the wavelength at which the radiative emission from a black body at a temperature $T\, K$ is maximum, then

A

$\lambda_m \propto T^4$

B

$\lambda_m$ is independent of T

C

$\lambda_m \propto T$

D

$\lambda_m \propto T^{-1}$

Answer

$\lambda_m \propto T^{-1}$

Explanation

Solution

$\lambda _m T$ = constant ,
$\lambda \propto T^{-1}$ (Wein's displacement law)