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

question 73

Multiple Choice

The diagram shows a single slit with the direction to a point P on a distant screen 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:

Positron Emission Tomography (PET)

A medical imaging technique that uses radioactive substances to visualize and measure changes in metabolic processes, and other physiological activities in the body.

Electrical Stimulation of the Brain (ESB)

A neurological procedure that involves applying small electric currents to specific areas of the brain, used for research, therapy, or neurological interventions.

Electroencephalograph (EEG)

An electroencephalograph (EEG) is a device used to record the electrical activity of the brain through electrodes placed on the scalp.

Lateral Hypothalamus

A region in the brain known as the hunger center; it plays a significant role in promoting feeding and drinking behavior.