Question

在空气中有一劈形透明膜,其劈尖角＝1.0×10-4rad,在波长＝700 nm的单色光垂

Answer 1

λ/2 = 0.0025 θ

λ = 0.005 θ = 5*10^-7 [m]

n = λ0/λ = 7*10^-7 / 5*10^-7 = 1.4