Each Pattern Shown Below Would Appear on a Screen When

question 20

Multiple Choice

Each pattern shown below would appear on a screen when monochromatic light of wavelength λ 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 does the slit have the narrowest width?

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Definitions:

Electrical Voltage

The difference in electric potential between two points, which drives the flow of electric current in a circuit.

Neurogenesis

The process of generating new neurons in the brain.

Transcranial Direct

Likely referring to transcranial direct current stimulation (tDCS), a form of neurostimulation that uses constant, low current delivered to the brain area via electrodes on the scalp.

Melatonin

A hormone produced by the pineal gland that regulates sleep and wakefulness.