Each Pattern Shown Below Would Appear on a Screen When

question 9

Multiple Choice

Each pattern shown below would appear on a screen when monochromatic light first passes through a narrow slit of width a and then strikes a screen. The darkest areas on the page represent the brightest areas on the screen. In which case is the slit illuminated with light of the shortest wavelength?

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Definitions:

Friction

The resistance that one surface or object encounters when moving over another.

Scales

Small, rigid plates that grow out of an animal's skin to provide protection. In fish and reptiles, scales perform this protective function.

Adaptation

The process by which organisms adjust to changes in their environment in order to survive and reproduce.

Creep

The slow movement of soil or rock down a slope, driven by gravity.