Soluton Page No-O Given thal using a lages that has a aiable wave 2en th regeanches has obtaineol the following daka anale O wave l angle 92 o waveler Soop bubble at noomal ncidence s ว่า whe»e ne is the index of sepsactto ofthe plm t is the Local th cknes of the Slm m is an intege and λ is the wave Qength of the Ant wolu, uwe knotws a uncon of angle
The Condition Po the minimum hicknej ml 5-88 5.88 ら、8-8 3231 x to 8 snV (55)