Define coefficient of absorption, coefficient of reflection and coefficient of transmission. Obtain relation between them.
Important Questions on Kinetic Theory of Gases and Radiation
Out of of radiant energy incident on a surface, the energy absorbed by the surface is and the energy reflected is . Then, coefficient of transmission of the body is
What is diathermanous medium?
A red-glass piece is heated until it glows in dark. The colour of the glow will be:
A hot liquid is kept in a big room. Its temperature is plotted as a function of time. Which of the following curves may represent the plot?
The coefficient of absorption and reflection of the surface of a body are and respectively. If of radiant heat is incident on the surface of the body, then the heat absorbed is
A polished metal plate with a rough black spot on it is heated to high temperature and quickly taken into a dark room. Then
If $a=0.8$ and $r=0.15,$ then $t$ is equal to
