What would happen if we increase the distance between the two slits?

As the slit separation increased, the fringe width decreased, meaning there was less interference. Also, as the distance between the slits and the wall increased, the fringe width increased, because the light would have more space to diffract outwards, and thus be able to interfere more.

What would the effect on this pattern be if the width of the slit was smaller?

If we increase the width size, a, the angle T at which the intensity first becomes zero decreases, resulting in a narrower central band. And if we make the slit width smaller, the angle T increases, giving a wider central band.

How does a single slit diffraction pattern differ from a double slit interference pattern?

In a single slit diffraction, light spreads out in a line perpendicular to the slit. But in a double slit diffraction, light diffracts when passing though the slits, but the light from those then interferes to produce an interference pattern on the screen.

How does the number of slits affect the interference pattern?

Interference fringe patterns for two, three and four slits. As the number of slits increases, more secondary maxima appear, but the principal maxima become brighter and narrower.

What happens to the spacing between fringes in a two slit interference pattern if the slit separation is increased?

The spacings between different fringes decreases as the distance between the slits increases because it is dependent on L.

What is the effect on diffraction pattern if slit width is increased?

If the width of the slit is increased in diffraction most of the light will pass through the slit without getting diffracted. As a result, the overlap because of diffraction reduces and lesser and narrower fringes are formed.

How shall the pattern change when white light is used in the Fraunhoffer diffraction pattern instead of monochromatic light?

Explanation: When white light is used instead of monochromatic light in Fraunhofer Diffraction, then the central maximum remains white as all seven wavelengths meet there in the same phase. Hence, there is no change in the Diffraction Pattern.

Is double-slit or single slit more accurate?

When doing lab experiments, the more data you have, the more accurate your results will be. The double slit experiment works by shooting parallel light rays from the same source, commonly a laser, at a pair of parallel openings in order to cause interference.

In what ways diffraction from each slit related to the interference pattern in a double slit experiment?

If the width of each slit is comparable to wavelength of light used then the interference pattern thus obtained in the double-slit experiment is modified by diffraction from each of the two slits.

How does diffraction grating differ from double slit?

The double slit experiment works by shooting parallel light rays from the same source, commonly a laser, at a pair of parallel openings in order to cause interference. Using a diffraction grating provides more slits, which increases the interference between the beams.