10. Consider a square plate of length 1=400 m. The plate has N = 36 uniformly distributed circular holes, each hole of a radius ro = 4 m. (a) Find the ratio of the SQFD coefficient of the perforated plate to that of a solid plate (without the perforation). (b) Repeat (a) assuming the number of holes has increased to N=49. (c) Repeat (a) assuming the radius of the hole has increased to ro = 8 m.