The power radiated by a black body is P and it radiates maximum energy around the wavelength ${\mathrm{\lambda }}_{\mathrm{o}}$- Now the temperature of the black body is changed so that it radiates
maximum energy around wavelength ${\mathrm{\lambda }}_0/2$. The power radiated by it will now increase by a factor of:

• A

  2

• B

  16

• C

  8

• D

  64