Physics - Wave Optics Question with Solution | TestHub

The angular separation between fringes in a single slit diffraction pattern is given by $\Delta \theta =\frac{\lambda }{a}$, where $\lambda$ is the wavelength of light and $a$ is the width of the slit.

This expression is independent of the distance $D$ between the slit and the screen.

Therefore, when the distance of separation between the slit and screen is doubled, the angular separation between fringes remains the same.

Answer: remains same