Question

If the maximum intensity of radiation for a black body is found at 2.65 μ, what is the temperature of the body? (Wien's constant = 2.9 × 10⁻³ mK)

Answer 1

Answer is 75 celcius

Answer 2

Answer:

The temperature of the body will be 1094 K.

Explanation:

Given that,

The wave length $\lambda=2.65\mu$

Wien's constant $b = 2.9\times10^{-3}\ mk$

We know that,

The Wien's displacement law is defined as:

$\lambda_{max}=\dfrac{b}{T}$

Here, $\lambda$ = Wave length

b = Wien's constant

T = Temperature

The temperature of the body is

$T = \dfrac{b}{\lambda}$

$T=\dfrac{2.9\times10^{-3}}{2.65\times10^{-6}}$

$T = 1094\ K$

Hence, The temperature of the body will be 1094 K.