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Energy In Perspective Laboratory #10: Investigations In Optics, Robert G. Fuller
Energy In Perspective Laboratory #10: Investigations In Optics, Robert G. Fuller
ADAPT Lessons: Physics
1. In an old-fashion film-developing device, it is common to use an aperture to control the exposure area of a film. The following diagram is a simplified version. There is a point light source on the left side of the diagram. We place an opaque plate with a 1 cm-square hole in its center and 10 cm away from the light source. Then we place a screen 20 cm away from the light source. The plate and the screen are facing the light source and all these objects are arranged in a straight line.
2. This Halloween picture was taken …