Transmission Of Heat Question 278
Question: A particular star (assuming it as a black body) has a surface temperature of about $ 5\times 10^{4}K. $ The wavelength in nanometers at which its radiation becomes maximum is (b = 0.0029 mK)
[EAMCET (Med.) 2003]
Options:
A) 48
B) 58
C) 60
D) 70
Show Answer
Answer:
Correct Answer: B
Solution:
According to Wein’s displacement law $ {\lambda _{m}}T=b $ or $ {\lambda _{m}}=\frac{b}{T} $
$ =\frac{0.0029}{5\times 10^{4}}=58\times {{10}^{-9}}m=58nm $
BETA
