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Bright and dark fringes are seen on a screen when light from a single source reaches two narrow slits a short distance apart.The locations of bright and dark fringes can be interchanged if a thin film is placed in front of one of the slits.The minimum thickness of this film must be:
Cognitive Impairment
A reduction in cognitive functions such as memory, decision-making, and attention, interfering with day-to-day activities.
Cyberbullying
The use of e-mail, texting, chat rooms, cell phones, or other digital devices to harass, threaten, or intimidate people.
Major Neurocognitive Disorder
A neurocognitive disorder in which the decline in cognitive functioning is substantial and interferes with the ability to be independent.
Mild Delirium
A lightly disturbed state of mind characterized by confusion, disordered speech, and hallucinations, typically of a temporary nature.
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