Transmission Of Heat Question 277
Question: The temperature of sun is 5500 K and it emits maximum intensity radiation in the yellow region $ (5.5\times {{10}^{-7}}m) $ . The maximum radiation from a furnace occurs at wavelength $ 11\times {{10}^{-7}}m. $ The temperature of furnace is
[J & K CET 2000]
Options:
A) 1125 K
B) 2750 K
C) 5500 K
D) 11000 K
Show Answer
Answer:
Correct Answer: B
Solution:
$ {\lambda _{m _{1}}}T={\lambda _{m _{2}}}T _{2} $
Therefore $ 5.5\times {{10}^{-7}}\times 5500=11\times {{10}^{-7}}T $
$ T=550\times 5K=2750K $
BETA
