A Beam of Light with a Frequency Range of 3

question 9

Multiple Choice

A beam of light with a frequency range of 3.01 × 10¹⁴ Hz - 6.10 × 10¹⁴ Hz is incident on a metal surface. If the work function of the metal surface is 2.20 eV, what is the maximum kinetic energy of photoelectrons ejected from this surface?

• A) 0.32 eV
• B) 0.21 eV
• C) 0.42 eV
• D) 0.16 eV
• E) 0.48 eV

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Definitions:

Dopamine

A neurotransmitter involved in reward, motivation, and addiction processes in the brain.

Parkinson's Disease

A neurodegenerative disorder that affects movement, often including tremors.

Acetylcholine

A neurotransmitter in the body that plays a key role in muscle activation and also functions in the brain to modulate mood, memory, and learning.

GABA

Gamma-Aminobutyric Acid, a neurotransmitter in the brain that plays a key role in regulating neuronal excitability and is involved in inducing relaxation and reducing anxiety.