Transmission Of Heat Question 263

Question: A black body emits radiations of maximum intensity at a wavelength of $ 5000{AA} $ , when the temperature of the body is $ 1227^{o}C $ . If the temperature of the body is increased by $ 1000^{o}C $ , the maximum intensity of emitted radiation would be observed at

[MP PET 1992]

Options:

A) $ 2754.8{AA} $

B) $ 3000{AA} $

C) $ 3500{AA} $

D) $ 4000{AA} $

Show Answer

Answer:

Correct Answer: B

Solution:

$ {\lambda _{m _{2}}}=\frac{T _{1}}{T _{2}}\times {\lambda _{m _{1}}}=\frac{1500}{2500}\times 5000=3000{AA} $