At what temperature a body will appear blue if Wiens constant b = 0.3 cm-K and the wavelength of maximum emission for blue collour is 5000Å ?

Options

A. 5000 K
B. 5500 K
C. 6000 K
D. 6500 K

Answer

C

Explanation

`lamda_(m)`T = b
`thereforeT=b/lamda_(m)=(0.3(cm-K))/(5000xx10^(-8)(cm))`
`T=(3xx10^(-1))/(5xx10^(-5))=6000K`
[`lamda_(m)` is given in cm because b is given ib cm-K]