The figure(Figure 1) shows the light intensity on a screen 2.5 m behind an apert

Question

The figure(Figure 1) shows the light intensity on a screen 2.5 m behind an aperture. The aperture is illuminated with light of wavelength 600 nm .

Is the aperture a single slit or a double slit?

single slit aperture

double slit aperture

PART B

EXPLAIN

PLEASE EXPLAIN IN DETAIL. I THINK IT IS BECAUSE IT IS INTERFERENCE AS WELL AS DIFFRACTION

BUT PLEASE GIVE ME DETAIL WHY IT IS A DOUBLE SLIT

single slit aperture

double slit aperture

PART B

EXPLAIN

PLEASE EXPLAIN IN DETAIL. I THINK IT IS BECAUSE IT IS INTERFERENCE AS WELL AS DIFFRACTION

BUT PLEASE GIVE ME DETAIL WHY IT IS A DOUBLE SLIT

Explanation / Answer

It is a double slit, and the explanation is very easy. Its all based on the intensity at zero. For a double slit, there will be a minima at zero, which is what we have here. The intensity at zero is zero.

If it were a single slit, the intensity is maximum at zero.

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