G Given a spherical shell of radius at a potential(θ,φ) =V0,0≤θ < π/2=−V0, π/2< θ≤π.The potential obeys Laplace’s equation inside and outside the shell. DetermineV(r,θ) both inside and outside the shell. (When appropriate, recall Sec. 9,problem 1.) From your result, determine the normal component of the electric field on either side of the shell, E+, andE−, and from them the charge on theshellσ(θ) =?0(E+−E−).

Consider a large isothermal enclosure that is maintained at a uniform temperature of 2000 k. calculate the emissive power of the radiation that emerges from a small aperture on the enclosure surface. what is the wavelength ? , below which 10% of the emission is concentrated? what is the wavelength ? 2 above which 10% of the emission is concentrated? determine the wavelength at which maximum spectral emissive power occurs. what is the irradiation incident on a small object placed inside the enclosure?