Light with a Frequency of 8

question 86

Multiple Choice

Light with a frequency of 8.70 × 10¹⁴ Hz is incident on a metal that has a work function of 2.80 eV.What is the maximum kinetic energy that a photoelectron ejected in this process can have? (1 eV = 1.60 × 10^-19 J,h = 6.626 × 10^-34 J ∙ s)

• A)8.7 × 10^-19 J
• B)3.1 × 10^-19 J
• C)1.3 × 10^-19 J
• D)2.4 × 10^-19 J
• E)4.5 × 10^-19 J

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Definitions:

Substantia Nigra

A brain structure located in the midbrain, crucial for movement control and implicated in disorders like Parkinson's disease.

Prefrontal Cortex

The front part of the frontal lobes of the brain, implicated in a variety of complex behaviors including planning, and deeply involved in personality development.

Amygdala

A small almond-shaped structure in the brain involved in processing emotions, particularly fear and pleasure.

Increased Dopamine Activation

A condition where there is a higher level of dopamine signal transmission in the brain, often associated with pleasure, motivation, and reward.