Solveeit Logo

Question

Question: The plots of intensity versus wavelength for three black bodies at temperatures T<sub>1</sub>, T<sub...

The plots of intensity versus wavelength for three black bodies at temperatures T1, T2 and T3 respectively are as shown. Their temperature are such that

A

T1>T2> T3

B

T1>T3> T2

C

T2>T3> T1

D

T3>T2> T1

Answer

T1>T3> T2

Explanation

Solution

According to Wien's law λm1T\lambda_{m} \propto \frac{1}{T} and from the figure

(λm)1<(λm)3<(λm)2(\lambda_{m})_{1} < (\lambda_{m})_{3} < (\lambda_{m})_{2} therefore T1 > T3 > T2.