In this case, d = 300λ

The angular separation, θ:

$\overline{)\begin{array}{rcl}\mathbf{s}\mathbf{i}\mathbf{n}\mathbf{\theta}& {\mathbf{=}}& \frac{\mathbf{\lambda}}{\mathbf{d}}\\ {\mathbf{\theta}}& {\mathbf{=}}& \mathbf{s}\mathbf{i}{\mathbf{n}}^{\mathbf{-}\mathbf{1}}\mathbf{\left(}\frac{\mathbf{\lambda}}{\mathbf{d}}\mathbf{\right)}\end{array}}$

In a double-slit experiment, the slit separation is 300 times the wavelength of the light. What is the angular separation (in degrees) between two adjacent bright fringes?

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