Heat TransferHard
Question
Ratio of radius of curvature of cylindrical emitters of same type is 1 : 4 and their temp. are in ratio 2 : 1. Then ratio of amount of heat emitted by them is - (For Cylinder length = radius)
Options
A.2 : 1
B.1 : 1
C.4 : 1
D.1 : 4
More Heat Transfer Questions
The temperature of the two outer surfaces of a composite slab, consisting of two materials having coefficients of therma...The rate of solar energy falling on unit area of earth′s surface is nearly (kilo - watt / m2)...Calculate the energy radiated per minute from the filament of an incandascent lamp at 2000K if the surface area is 5 ...Which of the prism is used to see infra-red spectrum of light -...At 700 K temperatures the wavelength of maximum energy emitted by a body is 408 micron. If the temperature of body is in...