A) Blue
B) Red
C) Black
D) White
Correct Answer: B
Solution :
Key Idea: Red colour has maximum wavelength. According to Wien's displacement law the relation between maximum wavelength \[{{\lambda }_{m}}\] and temperature T is \[{{\lambda }_{m}}T=\] constant Which implies longer the wavelength smaller the temperature. As, red colour has maximum wavelength, hence its temperature will be minimum and hence, it will cool at the earliest.You need to login to perform this action.
You will be redirected in
3 sec