Double Slit in Water · CAP 2023 #25

Physics

Problem

A double slit system is located in water (

n_w = 1.33

). What is the approximate spacing between two bright fringes? Assume that R ≫ d and that λ is the wavelength in vacuum. a)

\frac{\lambda d}{R n_w}

\frac{\lambda R n_w}{d}

\frac{\lambda R}{d n_w}

\frac{\lambda R}{d}