Aperture in Class

My Learnings: 

The words in the newspaper, and chocolate are blurred, however, the pink air pod case is in focus. Does aperture have a role in it? 

As I increased the aperture towards 27+, the words were way clearer all the objects were in focus. 

There was also a concept of depth of field which was taught in class, but I didn't understand it too well. 

Shutter Speed: 1/125                Aperture: 5.6                ISO: 3200
 
Shutter Speed: 1/100             Aperture: 8            ISO: 3200

Shutter Speed: 1/50             Aperture: 11            ISO: 3200

Shutter Speed: 1/30            Aperture: 13            ISO: 3200

Shutter Speed: 1/20             Aperture: 16            ISO: 3200

Shutter Speed: 1/15             Aperture: 19            ISO: 3200

Shutter Speed: 1/10             Aperture: 22            ISO: 3200

Shutter Speed: 1/8             Aperture: 27            ISO: 3200

Shutter Speed: 1/4             Aperture: 32            ISO: 3200

                Shutter Speed: 1/4             Aperture: 38            ISO: 3200             

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