The plots of intensity (I) of radiation versus wavelength `(gamma)` of thee black bodies at temperatures `T_(1), T_(2)` and `T_(3)` are shown in Fig.7(CF).25. Then,

Options

A. `T_(3)gtT_(2)gtT_(1)`
B. `T_(1)gtT_(2)gtT_(3)`
C. `T_(2)gtT_(3)gtT_(1)`
D. `T_(1)gtT_(3)gtT_(2)`

Answer

D

Explanation

For black body radiation, `lambda_(m)T=a` constant =b
or `lambda_(m) prop (1)/(T)`. The wavelength `lambda_(m)` is less for curve `T_(1)`, more for curve `T_(3)` and maximum for curve `T_(2)`.
Hence, `T_(1)gtT_(3)gtT_(2)`