Heat TransferMedium
Question
The sun emits a light with maximum wave length 510 nm while another star emits a light with maximum wavelength of 350 nm. The ratio of surface temperature of sun and the star will be :
Options
A.1.68
B.2.1
C.1.45
D.0.46
Solution
Applying Wein′s displacement law,
λm T = constant

= 0.68
λm T = constant
Create a free account to view solution
View Solution FreeMore Heat Transfer Questions
Four indentical calorimeters painted in different colours, are heated to same temperature and then allowed to cool in va...Two metal rods X and Y having equal cross-sectional areas are joined end to end to form a composite bar, one end of whic...A metallic sphere having radius 0.08 m and mass m = 10 kg is heated to a temperature of 227oC and suspended inside a box...Woolen clothes keep the body warm because the wool :...Suppose the sun expands so that its radius becomes 100 times its present radius and its surface temperature becomes half...