The Diagram Shows a Single Slit with the Direction to a Point

question 1

Multiple Choice

The diagram shows a single slit with the direction to a point P on a distant screen (not shown) .At P, the pattern has its maximum nearest the central maximum.If X and Y are the edges of the slit, what is the path length difference (PX) - (PY) ?

• A)"\(\lambda\)/2"
• B)"\(\lambda\)"
• C)"3\(\lambda\)/2"
• D)"2\(\lambda\)"
• E)"5\(\lambda\)/2"

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Definitions:

Thalamus

A major part of the brain acting as a principal relay station for sensory information flowing to the cortex.

Broca's Area

A region in the frontal lobe of the dominant hemisphere (usually the left) of the brain with functions linked to speech production.

Functional Magnetic Resonance Imaging

An imaging technique that measures brain activity by detecting changes associated with blood flow, used to understand brain function.

Positron Emission Tomography

A nuclear medicine functional imaging technique that is used to observe metabolic processes in the body as an aid to the diagnosis of disease.