What is the minimum diameter of a mirror on a telescope that would allow you to resolve objects with angular separation of 3.5 cross times 10 to the power of negative 5 end exponent radians ? Assume an average wavelength of 550 nm for the light received.

Consider the growth of a 20-nm-diameter silicon nanowire onto a silicon wafer. the temperature of the wafer surface is maintained at 2400 k. assume the thermal conductivity of the silicon nanowire is 20 wm-1k-1 and all its surfaces including the tip are subjected to convection heat transfer with the coefficient h = 1×105 wm-2k-1 and t∞ = 8000 k. when the nanowire grows to l = 300 nm, what is the temperature of the nanowire tip (t (x =